HM_digital


	PH Hydro Tester PH-80 Features: 1. Measures pH and Temperature 2. One-touch automatic digital calibration 3. Water resistant 4. Simultaneous temperature display Sleek, lightweight design 5. Large LCD display 6. Automatic Temperature Compensation (ATC) 7. Auto-off function, data-hold function and low-battery indicator 8. Includes storage solution in a sponge embedded in a translucent cap 9. Factory Calibrated: The PH-80 meter is factory calibration to pH 7.0. The meter can easily and quickly be recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the meter's simple one-touch process. 10. Includes a cap, batteries, storage solution and pH 7.0 buffer Specification: pH Range: 0 - 14 Temperature Range: 1-80 °C; 33-176 °F Resolution: 0.1 pH; Temperature resolution is 0.1 °C/°F Accuracy: +/- 0.2 pH; Temperature accuracy is +/-2% Calibration: Digital automatic calibration (one point) Electrode: Glass sensor and reference tube electrodes Housing: Water resistant Power source: 3 x 1.5V button cell batteries (model 357A; included) Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches) Weight: 53.9 g (1.9 oz) Inner box: 10pcs/box, box size: 24.52015cm, 0.7KG Carton: 180pcs/ctn, size: 65.35342cm, 18kgs

	PH-200: Waterproof pH/Temp Meter FEATURES Measures pH and Temperature Auto-ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap Waterproof housing Simultaneous temperature display Measurement Range: 0-14 pH Digital automatic calibration (one point), with digital fine tuning Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading Factory calibration: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries, lanyard, and pH 7.0 buffer SPECIFICATIONS pH Range: 0 - 14 Temperature Range: 0-80 °C; 32-176 °F Resolution: 0.01 pH; Temperature resolution is 0.1 °C/°F Accuracy: +/- 0.02 pH Calibration: Digital automatic calibration (one point) with digital fine tuning Electrode: Replaceable glass sensor and reference tube electrodes Housing: Waterproof (submersible; floats) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 96.4 g (3.4 oz) 100PCS/CTNS SIZE: 65.55342cm GW: 15kg


	T-3 Handheld TDS Meter (HM digital product) Features Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Display: large and easy-to-read LCD screen. Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Also available in "x10" mode: reads in increments only of 10 ppm (0-9990 ppm) Specifications TDS Range: 0 - 9990 ppm (mg/L) Resolution: 1 ppm(also available in 10 ppm) Accuracy: +/- 2% Power source: 2 x 1.5V button cell batteries (included) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	TDS-4 Pocket-Size Meter (HM digital product) A TDS tester that's ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket at all times! Features -The smallest and lightest TDS meter on the market. -Sleek design is perfect for personal or consumer use. -Advanced microprocessor technology. -Hold Function: saves measurements for convenient reading and recording. -Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. -Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking 'x10' image. -Display: large and easy-to-read LCD screen. -Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Specifications -Range: 0 - 9990 ppm (mg/L) -Resolution: 1 ppm -Accuracy: +/- 2% -ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit) -Power source: 2 x 1.5V button cell batteries (included) -Battery life: 1000 hours of usage -Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches) -Weight: 34g (1.2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	TDS-3 Handheld TDS/Temp Meter (HM digital product) Features Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Built-in digital thermometer Display: large and easy-to-read LCD screen. Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Also available in "x10" mode: reads in increments only of 10 ppm (0-9990 ppm) Specifications TDS Range: 0 - 9990 ppm (mg/L) Temp. Range: 0 - 80 degrees Celsius Resolution: 1 ppm, 1 degree Celsius (also available in 10 ppm) Accuracy: +/- 2% ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit) Power source: 2 x 1.5V button cell batteries (included) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	TDS-4TM: Pocket-Size Meter with Digital Thermometer (HM digital product) Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. FEATURES -Includes an internal digital thermometer (celsius). -The smallest and lightest TDS meter available on the market. -Hold Function - Saves measurements for convenient reading and recording. -Auto-off function - Turns off meter after 10 minutes of non-use to conserve batteries. -Dual Range - Measures from 0 - 999 ppm, with a resolution of 1ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image. -Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. -Meters can be recalibrated with a mini-screwdriver. -Recommended for aquariums & aquaculture, horticulture & hydroponics, pools & spas and water cooler professionals. -Click here to view our aquarium-specific packaging (for model TDS-4TMA). SPECIFICATIONS -TDS Range: 0-9990 ppm (mg/L) -Temp. Range: 0-80 degrees Celsius -Resolution: 1 ppm, 1 degree Celsius -Accuracy: +/- 2% -ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit) -Power source: 2 x 1.5V button cell batteries (included) -Battery life: 1000 hours of usage -Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches) -Weight: 34g (1.2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	Water Quality Tester TDS-EZ Features: 1. Economy model that is ideal for end-users. 2. Highly efficient and accurate due to its advanced microprocessor technology. 3. Hold Function: saves measurements for convenient reading and recording. 4. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. 5. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. 6. Display: large and easy-to-read LCD screen. 7. Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. 8. Fun, translucent blue housing that's very strong and durable. Includes a TDS chart sticker on the back of the meter that explains TDS values. 9. Comes in a retail-oriented package. Specifications: Range: 0 - 9990 ppm (mg/L) Resolution: 1 ppm (0-999 ppm); 10 ppm (1000-9990 ppm) Accuracy: +/- 3% Conversion Factor: NaCl (avg. 0.5) Power source: 2 x 1.5V button cell batteries (included) (357A) Battery life: Approx. 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Meter weight: 56.7g (2 oz) Weight with package: 76.5g (2.7 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	AP-1 AquaPro Water Quality Tester (TDS/Temp Meter) (HM digital product) FEATURES Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ppm Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: 4 digits, large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap and batteries Comes in a retail-oriented package SPECIFICATIONS TDS Range: 0-5000 ppm (mg/L) Temperature Range: 0-80 ºC; 32-176 ºF Resolution: 1 ppm; Temp. resolution is 0.1 ºC/F Accuracy: +/- 2% Calibration: Digital calibration by push button. Housing: Water-resistant Power source: 1 x 3V button cell (included) (model CR2032) Dimensions: 15 x 2.8 x 1.3 cm (5.9 x 1.1 x .5 inches) Weight: 42.5 g (1.5 oz) 200PCS/CTNS SIZE: 543233cm GW: 20kg

	AP-2: AquaPro Water Quality Tester (EC) (HM digital product) New AquaPro series, a line of handheld TDS/EC meters with a sleek design that's perfect for today's modern kitchen. The AquaPro digital water testers are the next generation for today's tech-savvy and health-conscience consumer. FEATURES -Measures electrical conductivity (EC) and temperature. -Automatic Temperature Compensation (ATC) -Water-resistant housing -Measurement Range: 0-9999 µS -Digital Calibration (push button) -Auto-off function, data-hold function and low-battery indicator. -Display: large and easy-to-read LCD screen includes simultaneous temperature reading. -Factory Calibrated: The AquaPro is calibrated with a 700 µS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. -Includes a cap and batteries -Comes in a retail-oriented package SPECIFICATIONS -EC Range: 0-9999 µS -Temperature Range: 0-80 ºC; 32-176 ºF -Resolution: 1 µS; Temp. resolution is 0.1 ºC/F -Accuracy: +/- 2% -Calibration: Digital calibration by push button. -Housing: Water-resistant -Power source: 1 x 3V button cell (included) (model CR2032) -Dimensions: 15 x 2.8 x 1.3 cm (5.9 x 1.1 x .5 inches) -Weight: 42.5 g (1.5 oz) 200PCS/CTNS SIZE: 543233cm GW: 20kg

	Handheld Conductivity Tester with Case EC-3 (HM digital product) Features: 1. Ideal for commercial use. Includes a carrying case with belt clip. 2. Highly efficient and accurate due to its advanced microprocessor technology. 3. Hold Function: saves measurements for convenient reading and recording. 4. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. 5. Measurement Range: 0-9990 µS. From 0-999 µS, the resolution is in increments of 1 µS. From 1000 to 9990 µS, the resolution is in increments of 10 µS, indicated by a blinking 'x10' image. 6. Built-in digital thermometer 7. Display: large and easy-to-read LCD screen. 8. Factory Calibrated: our meters are calibrated with a 700 µS NaCl solution. 9. Meters can be recalibrated with a mini-screwdriver. 10. the meter with its leather case packing. Specifications: TDS Range: 0 - 9990 µS (µS/cm) Temp. Range: 0 - 80 degrees Celsius Resolution: 1 µS; 10 µS, 0.1 degree Celsius Accuracy: +/- 2% ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50°C (33 to 122°F) Power source: 2 x 1.5V button cell batteries (included) (357A) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz)

	COM-100: Waterproof EC / TDS / Temp Combo Meter (HM digital product) Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. FEATURES Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442^TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients Waterproof housing Measurement Range: 0-9990 µS; 0-8560 ppm (auto-ranging). Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory calibration: The COM-100 meter is calibrated with a 1413 µS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries and lanyard. SPECIFICATIONS EC Range: 0 - 9990 µS TDS Range: 0-8560 ppm (mg/L) Temperature Range: 0-80 ºC; 32-176 ºF Resolution: 0-99: 0.1 µS/ppm; 100-999: 1 µS/ppm; 1000-9990: 10 µS/ppm. Temp. resolution is 0.1 ºC/F Accuracy: +/- 2% EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, set by the user. Calibration: Digital calibration by push button. Probe: Detachable platinum electrodes Housing: Waterproof (submersible) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 90.7g (3.2 oz) 100PCS/CTNS SIZE: 65.55342cm GW: 15kg

	Waterproof ORP Meter ORP-200 (HM digital product) Features: 1. Measures Oxidation Reduction Potential (Redox) and Temperature 2. Auto-ranging calibration with digital fine tuning 3. Includes storage solution in a sponge embedded in a clear cap 4. Waterproof housing (IP-67 rating) 5. Simultaneous temperature display 6. Digital Calibration (push button) 7. Auto-off function, data-hold function and low-battery indicator. 8. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. 9. Replaceable Sensor (model SP-O2) 10. Factory Calibrated: The ORP-200 meter is factory calibrated to +92 mV The meter can be easily recalibrated with digital calibration using the push buttons, rather than a screwdriver. 11. Includes a cap, batteries, and lanyard Specifications: ORP Range: -999 to +1000 mV Temperature Range: 0-80°C; 32-176°F Resolution: 1 mV; Temperature resolution is 0.1°C/°F Accuracy: 0.5% (+/-2mV) Calibration: Digital calibration by push button. Electrode: Replaceable glass sensor and reference tube electrodes Housing: IP-67 Waterproof (submersible; floats) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 96.4 g (3.4 oz) 100PCS/CTNS SIZE: 65.55342cm GW: 15kg

	DM-1: In-Line Dual TDS Monitor (HM digital product) Measure the tap water coming in vs. the purified water going out of your water filtration system at any time. FEATURES Displays TDS levels of the feed water and product water with in & out electrode probes. Highly efficient and accurate due to its advanced microprocessor technology. Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use. Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.) Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Comes equipped with John Guest Quick-Connect T-fittings as shown. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Cable Length: 24.5" (including sensor) Fittings: 1/4" standard, also available with 3/8" or 1/2" Power source: 2 x 1.5V button cell batteries (included) Battery life: approx. 1000 hours of continuous use Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.) Weight: 79.4 g (2.8 oz.)

Differences from the DM-1: Designed for commercial/industrial applications. Stronger, water-resistant casing. Calibration can be done individually or simultaneously on each line. Improved design, including an extra large, easy-to-read LCD display. Longer, waterproof, shielded cables. Variable mounting bracket.	DM-2: Commercial In-Line Dual TDS Monitor (HM digital product) Install on industrial systems such as car washes, window washing, manufacturing, and food processing. FEATURES Highly efficient and accurate due to its advanced microprocessor technology. Displays TDS levels of the Feed Water and Product Water with in & out electrode probes. Auto-Off function conserves battery power. The unit shuts off automatically after 20 seconds. Dual Range - Measures from 0-999 ppm, with a resolution of 1 ppm. From 1000 to 9990 ppm, the resolution is in 10 ppm increments, indicated by a blinking 'x10' image. Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Comes equipped with 1/4 inch John Guest Quick-Connect T-fittings as shown. Also available with 3/8" fittings. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Cable Length: 46" (including sensor) Calibration: Factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line, or simultaneously for both. Power source: 2 AAA batteries (included) Battery life: over 1000 hours of continuous use Size: 11.6 x 6.8 x1.8 cm (4.6 x 2.6 x .7in.) Weight: 201.3 g (7.1 oz.)

FEATURES A five-stage filter monitor with five independent timers and a tri-color LED faucet indicator disc. Works on time (and volume for the FM-2) for up to five stages (can be less). The LED indicator disc will illuminate a green, yellow or red light when the water is turned on. The color indicates the percentage of elapsed time. Auto-Off function conserves battery power. The unit shuts off automatically after 5 minutes of non-use. The timer counts down in months or days (settings can be modified). Includes an audible alarm (beep). Modern design is perfect for any kitchen. Installs quickly and easily.	Filter Monitor (HM digital product) FM-1 SPECIFICATIONS Timer Range: 0-999 days/months Timer Modes: Days or months (default is months) Settings: One alert per stage, up to five stages Default Setting: 12 months Batteries: 2 x AA (included) Battery Life: approx. 18 months Base Unit Dimensions: 100 x 63 23 mm (4 x 2.5 x 0.9 in) Base Unit Weight: 119 g (4.2 oz.) (including batteries) Flow Switch Cable Length: 93 cm (36.6 in) Flow Switch Fitting Size: 1/4" Quick Connect LED Faucet Indicator Disc Cable Length: 92 cm (36.25 in) LED Faucet Indicator Disc Dimensions: 4.75 (1 1/4" in.) dia., 8 cm (5/16") high FM-2 SPECIFICATIONS Timer Range: 0-999 days/months Timer Modes: Days or months (default is months) Volume Range 0-99999 Gallons / Liters Volume Modes: Gallons (default) or Liters Volume Accuracy: +/-1% (at typical flow rates of approx. 1.5 to 2.5 LPM; low and high rates may affect accuracy) Maximum Pressure: 150 psi Settings: One alert per stage, up to five stages Default Setting: 12 months Batteries: 2 x AA (included) Battery Life: approx. 18 months Base Unit Dimensions: 100 x 63 23 mm (4 x 2.5 x 0.9 in) Base Unit Weight: 119 g (4.2 oz.) (including batteries) Flow Sensor Cable Length: 93 cm (36.6 in) Flow Sensor Fitting Size: 1/4" Quick Connect LED Faucet Indicator Disc: Works with any non-air gap filter faucet LED Faucet Indicator Disc Cable Length: 92 cm (36.25 in) LED Faucet Indicator Disc Dimensions: 4.75 (1 1/4" in.) dia., 8 cm (5/16") high

	TM-1: Industrial-Grade Digital Thermometer For use in: All hot and cold fluids and/or solids Aquariums Kitchens and bakeries Hydroponics and aquaculture Freezers/coolers and heating systems Motors, generators and ventilations systems Academic, scientific and medical laboratories FEATURES Durable 2 ½” stainless steel probe with 20” cable Complete with wallet-style carrying case Large, easy-to-read LCD display SPECIFICATIONS Temp. Range: -58 to 482°F (-50 to 250°C) Resolution: .0.1°C and 0.1 °F Accuracy: ±1°C (-10 to 100°C ), ±2°C (101 to 200°C ), ±3°C (-50 to -10°C ), ±5°C (200 to 250°C ) Power source: 2 x 1.5V button cell batteries (included) Dimensions: 5.4 x 10.8 x 1.2cm (2.1 x 4.2 x .5 inches) Weight with case: 85g (3 oz) Weight without case: 56.7g (2 oz)


	PH Hydro Tester PH-80 Features: 1. Measures pH and Temperature 2. One-touch automatic digital calibration 3. Water resistant 4. Simultaneous temperature display Sleek, lightweight design 5. Large LCD display 6. Automatic Temperature Compensation (ATC) 7. Auto-off function, data-hold function and low-battery indicator 8. Includes storage solution in a sponge embedded in a translucent cap 9. Factory Calibrated: The PH-80 meter is factory calibration to pH 7.0. The meter can easily and quickly be recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the meter's simple one-touch process. 10. Includes a cap, batteries, storage solution and pH 7.0 buffer Specification: pH Range: 0 - 14 Temperature Range: 1-80 °C; 33-176 °F Resolution: 0.1 pH; Temperature resolution is 0.1 °C/°F Accuracy: +/- 0.2 pH; Temperature accuracy is +/-2% Calibration: Digital automatic calibration (one point) Electrode: Glass sensor and reference tube electrodes Housing: Water resistant Power source: 3 x 1.5V button cell batteries (model 357A; included) Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches) Weight: 53.9 g (1.9 oz) Inner box: 10pcs/box, box size: 24.52015cm, 0.7KG Carton: 180pcs/ctn, size: 65.35342cm, 18kgs

	PH-200: Waterproof pH/Temp Meter FEATURES Measures pH and Temperature Auto-ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap Waterproof housing Simultaneous temperature display Measurement Range: 0-14 pH Digital automatic calibration (one point), with digital fine tuning Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading Factory calibration: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries, lanyard, and pH 7.0 buffer SPECIFICATIONS pH Range: 0 - 14 Temperature Range: 0-80 °C; 32-176 °F Resolution: 0.01 pH; Temperature resolution is 0.1 °C/°F Accuracy: +/- 0.02 pH Calibration: Digital automatic calibration (one point) with digital fine tuning Electrode: Replaceable glass sensor and reference tube electrodes Housing: Waterproof (submersible; floats) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 96.4 g (3.4 oz) 100PCS/CTNS SIZE: 65.55342cm GW: 15kg


	T-3 Handheld TDS Meter (HM digital product) Features Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Display: large and easy-to-read LCD screen. Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Also available in "x10" mode: reads in increments only of 10 ppm (0-9990 ppm) Specifications TDS Range: 0 - 9990 ppm (mg/L) Resolution: 1 ppm(also available in 10 ppm) Accuracy: +/- 2% Power source: 2 x 1.5V button cell batteries (included) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	TDS-4 Pocket-Size Meter (HM digital product) A TDS tester that's ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket at all times! Features -The smallest and lightest TDS meter on the market. -Sleek design is perfect for personal or consumer use. -Advanced microprocessor technology. -Hold Function: saves measurements for convenient reading and recording. -Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. -Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking 'x10' image. -Display: large and easy-to-read LCD screen. -Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Specifications -Range: 0 - 9990 ppm (mg/L) -Resolution: 1 ppm -Accuracy: +/- 2% -ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit) -Power source: 2 x 1.5V button cell batteries (included) -Battery life: 1000 hours of usage -Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches) -Weight: 34g (1.2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	TDS-3 Handheld TDS/Temp Meter (HM digital product) Features Ideal for commercial use. Includes a carrying case with belt clip. Highly efficient and accurate due to its advanced microprocessor technology. Hold Function: saves measurements for convenient reading and recording. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. Built-in digital thermometer Display: large and easy-to-read LCD screen. Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Also available in "x10" mode: reads in increments only of 10 ppm (0-9990 ppm) Specifications TDS Range: 0 - 9990 ppm (mg/L) Temp. Range: 0 - 80 degrees Celsius Resolution: 1 ppm, 1 degree Celsius (also available in 10 ppm) Accuracy: +/- 2% ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit) Power source: 2 x 1.5V button cell batteries (included) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	TDS-4TM: Pocket-Size Meter with Digital Thermometer (HM digital product) Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. FEATURES -Includes an internal digital thermometer (celsius). -The smallest and lightest TDS meter available on the market. -Hold Function - Saves measurements for convenient reading and recording. -Auto-off function - Turns off meter after 10 minutes of non-use to conserve batteries. -Dual Range - Measures from 0 - 999 ppm, with a resolution of 1ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image. -Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. -Meters can be recalibrated with a mini-screwdriver. -Recommended for aquariums & aquaculture, horticulture & hydroponics, pools & spas and water cooler professionals. -Click here to view our aquarium-specific packaging (for model TDS-4TMA). SPECIFICATIONS -TDS Range: 0-9990 ppm (mg/L) -Temp. Range: 0-80 degrees Celsius -Resolution: 1 ppm, 1 degree Celsius -Accuracy: +/- 2% -ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit) -Power source: 2 x 1.5V button cell batteries (included) -Battery life: 1000 hours of usage -Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches) -Weight: 34g (1.2 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	Water Quality Tester TDS-EZ Features: 1. Economy model that is ideal for end-users. 2. Highly efficient and accurate due to its advanced microprocessor technology. 3. Hold Function: saves measurements for convenient reading and recording. 4. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. 5. Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1ppm. From 1000 to 9990 ppm, the resolution is in increments of 10ppm, indicated by a blinking 'x10' image. 6. Display: large and easy-to-read LCD screen. 7. Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. 8. Fun, translucent blue housing that's very strong and durable. Includes a TDS chart sticker on the back of the meter that explains TDS values. 9. Comes in a retail-oriented package. Specifications: Range: 0 - 9990 ppm (mg/L) Resolution: 1 ppm (0-999 ppm); 10 ppm (1000-9990 ppm) Accuracy: +/- 3% Conversion Factor: NaCl (avg. 0.5) Power source: 2 x 1.5V button cell batteries (included) (357A) Battery life: Approx. 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Meter weight: 56.7g (2 oz) Weight with package: 76.5g (2.7 oz) 500PCS/CTNS SIZE: 65.55342cm GW: 45kg

	AP-1 AquaPro Water Quality Tester (TDS/Temp Meter) (HM digital product) FEATURES Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compensation (ATC) Water-resistant housing Measurement Range: 0-5000 ppm Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: 4 digits, large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The AquaPro is calibrated with a 342 ppm NaCl solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap and batteries Comes in a retail-oriented package SPECIFICATIONS TDS Range: 0-5000 ppm (mg/L) Temperature Range: 0-80 ºC; 32-176 ºF Resolution: 1 ppm; Temp. resolution is 0.1 ºC/F Accuracy: +/- 2% Calibration: Digital calibration by push button. Housing: Water-resistant Power source: 1 x 3V button cell (included) (model CR2032) Dimensions: 15 x 2.8 x 1.3 cm (5.9 x 1.1 x .5 inches) Weight: 42.5 g (1.5 oz) 200PCS/CTNS SIZE: 543233cm GW: 20kg

	AP-2: AquaPro Water Quality Tester (EC) (HM digital product) New AquaPro series, a line of handheld TDS/EC meters with a sleek design that's perfect for today's modern kitchen. The AquaPro digital water testers are the next generation for today's tech-savvy and health-conscience consumer. FEATURES -Measures electrical conductivity (EC) and temperature. -Automatic Temperature Compensation (ATC) -Water-resistant housing -Measurement Range: 0-9999 µS -Digital Calibration (push button) -Auto-off function, data-hold function and low-battery indicator. -Display: large and easy-to-read LCD screen includes simultaneous temperature reading. -Factory Calibrated: The AquaPro is calibrated with a 700 µS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. -Includes a cap and batteries -Comes in a retail-oriented package SPECIFICATIONS -EC Range: 0-9999 µS -Temperature Range: 0-80 ºC; 32-176 ºF -Resolution: 1 µS; Temp. resolution is 0.1 ºC/F -Accuracy: +/- 2% -Calibration: Digital calibration by push button. -Housing: Water-resistant -Power source: 1 x 3V button cell (included) (model CR2032) -Dimensions: 15 x 2.8 x 1.3 cm (5.9 x 1.1 x .5 inches) -Weight: 42.5 g (1.5 oz) 200PCS/CTNS SIZE: 543233cm GW: 20kg

	Handheld Conductivity Tester with Case EC-3 (HM digital product) Features: 1. Ideal for commercial use. Includes a carrying case with belt clip. 2. Highly efficient and accurate due to its advanced microprocessor technology. 3. Hold Function: saves measurements for convenient reading and recording. 4. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. 5. Measurement Range: 0-9990 µS. From 0-999 µS, the resolution is in increments of 1 µS. From 1000 to 9990 µS, the resolution is in increments of 10 µS, indicated by a blinking 'x10' image. 6. Built-in digital thermometer 7. Display: large and easy-to-read LCD screen. 8. Factory Calibrated: our meters are calibrated with a 700 µS NaCl solution. 9. Meters can be recalibrated with a mini-screwdriver. 10. the meter with its leather case packing. Specifications: TDS Range: 0 - 9990 µS (µS/cm) Temp. Range: 0 - 80 degrees Celsius Resolution: 1 µS; 10 µS, 0.1 degree Celsius Accuracy: +/- 2% ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50°C (33 to 122°F) Power source: 2 x 1.5V button cell batteries (included) (357A) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz)

	COM-100: Waterproof EC / TDS / Temp Combo Meter (HM digital product) Ideal for all water quality testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more. FEATURES Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature. Three different calibration options (KCl, 442^TM, NaCl), each with its own non-linear conversion factor. Automatic Temperature Compensation (ATC) using three temperature coefficients Waterproof housing Measurement Range: 0-9990 µS; 0-8560 ppm (auto-ranging). Digital Calibration (push button) Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory calibration: The COM-100 meter is calibrated with a 1413 µS solution. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries and lanyard. SPECIFICATIONS EC Range: 0 - 9990 µS TDS Range: 0-8560 ppm (mg/L) Temperature Range: 0-80 ºC; 32-176 ºF Resolution: 0-99: 0.1 µS/ppm; 100-999: 1 µS/ppm; 1000-9990: 10 µS/ppm. Temp. resolution is 0.1 ºC/F Accuracy: +/- 2% EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, set by the user. Calibration: Digital calibration by push button. Probe: Detachable platinum electrodes Housing: Waterproof (submersible) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 90.7g (3.2 oz) 100PCS/CTNS SIZE: 65.55342cm GW: 15kg

	Waterproof ORP Meter ORP-200 (HM digital product) Features: 1. Measures Oxidation Reduction Potential (Redox) and Temperature 2. Auto-ranging calibration with digital fine tuning 3. Includes storage solution in a sponge embedded in a clear cap 4. Waterproof housing (IP-67 rating) 5. Simultaneous temperature display 6. Digital Calibration (push button) 7. Auto-off function, data-hold function and low-battery indicator. 8. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. 9. Replaceable Sensor (model SP-O2) 10. Factory Calibrated: The ORP-200 meter is factory calibrated to +92 mV The meter can be easily recalibrated with digital calibration using the push buttons, rather than a screwdriver. 11. Includes a cap, batteries, and lanyard Specifications: ORP Range: -999 to +1000 mV Temperature Range: 0-80°C; 32-176°F Resolution: 1 mV; Temperature resolution is 0.1°C/°F Accuracy: 0.5% (+/-2mV) Calibration: Digital calibration by push button. Electrode: Replaceable glass sensor and reference tube electrodes Housing: IP-67 Waterproof (submersible; floats) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 96.4 g (3.4 oz) 100PCS/CTNS SIZE: 65.55342cm GW: 15kg

	DM-1: In-Line Dual TDS Monitor (HM digital product) Measure the tap water coming in vs. the purified water going out of your water filtration system at any time. FEATURES Displays TDS levels of the feed water and product water with in & out electrode probes. Highly efficient and accurate due to its advanced microprocessor technology. Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use. Dual Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.) Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Comes equipped with John Guest Quick-Connect T-fittings as shown. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Cable Length: 24.5" (including sensor) Fittings: 1/4" standard, also available with 3/8" or 1/2" Power source: 2 x 1.5V button cell batteries (included) Battery life: approx. 1000 hours of continuous use Size: 7.6 x 2 x 4.7 cm (3 x .8 x 1.9 in.) Weight: 79.4 g (2.8 oz.)

Differences from the DM-1: Designed for commercial/industrial applications. Stronger, water-resistant casing. Calibration can be done individually or simultaneously on each line. Improved design, including an extra large, easy-to-read LCD display. Longer, waterproof, shielded cables. Variable mounting bracket.	DM-2: Commercial In-Line Dual TDS Monitor (HM digital product) Install on industrial systems such as car washes, window washing, manufacturing, and food processing. FEATURES Highly efficient and accurate due to its advanced microprocessor technology. Displays TDS levels of the Feed Water and Product Water with in & out electrode probes. Auto-Off function conserves battery power. The unit shuts off automatically after 20 seconds. Dual Range - Measures from 0-999 ppm, with a resolution of 1 ppm. From 1000 to 9990 ppm, the resolution is in 10 ppm increments, indicated by a blinking 'x10' image. Factory calibration: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. Comes equipped with 1/4 inch John Guest Quick-Connect T-fittings as shown. Also available with 3/8" fittings. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Cable Length: 46" (including sensor) Calibration: Factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line, or simultaneously for both. Power source: 2 AAA batteries (included) Battery life: over 1000 hours of continuous use Size: 11.6 x 6.8 x1.8 cm (4.6 x 2.6 x .7in.) Weight: 201.3 g (7.1 oz.)

FEATURES A five-stage filter monitor with five independent timers and a tri-color LED faucet indicator disc. Works on time (and volume for the FM-2) for up to five stages (can be less). The LED indicator disc will illuminate a green, yellow or red light when the water is turned on. The color indicates the percentage of elapsed time. Auto-Off function conserves battery power. The unit shuts off automatically after 5 minutes of non-use. The timer counts down in months or days (settings can be modified). Includes an audible alarm (beep). Modern design is perfect for any kitchen. Installs quickly and easily.	Filter Monitor (HM digital product) FM-1 SPECIFICATIONS Timer Range: 0-999 days/months Timer Modes: Days or months (default is months) Settings: One alert per stage, up to five stages Default Setting: 12 months Batteries: 2 x AA (included) Battery Life: approx. 18 months Base Unit Dimensions: 100 x 63 23 mm (4 x 2.5 x 0.9 in) Base Unit Weight: 119 g (4.2 oz.) (including batteries) Flow Switch Cable Length: 93 cm (36.6 in) Flow Switch Fitting Size: 1/4" Quick Connect LED Faucet Indicator Disc Cable Length: 92 cm (36.25 in) LED Faucet Indicator Disc Dimensions: 4.75 (1 1/4" in.) dia., 8 cm (5/16") high FM-2 SPECIFICATIONS Timer Range: 0-999 days/months Timer Modes: Days or months (default is months) Volume Range 0-99999 Gallons / Liters Volume Modes: Gallons (default) or Liters Volume Accuracy: +/-1% (at typical flow rates of approx. 1.5 to 2.5 LPM; low and high rates may affect accuracy) Maximum Pressure: 150 psi Settings: One alert per stage, up to five stages Default Setting: 12 months Batteries: 2 x AA (included) Battery Life: approx. 18 months Base Unit Dimensions: 100 x 63 23 mm (4 x 2.5 x 0.9 in) Base Unit Weight: 119 g (4.2 oz.) (including batteries) Flow Sensor Cable Length: 93 cm (36.6 in) Flow Sensor Fitting Size: 1/4" Quick Connect LED Faucet Indicator Disc: Works with any non-air gap filter faucet LED Faucet Indicator Disc Cable Length: 92 cm (36.25 in) LED Faucet Indicator Disc Dimensions: 4.75 (1 1/4" in.) dia., 8 cm (5/16") high

	TM-1: Industrial-Grade Digital Thermometer For use in: All hot and cold fluids and/or solids Aquariums Kitchens and bakeries Hydroponics and aquaculture Freezers/coolers and heating systems Motors, generators and ventilations systems Academic, scientific and medical laboratories FEATURES Durable 2 ½” stainless steel probe with 20” cable Complete with wallet-style carrying case Large, easy-to-read LCD display SPECIFICATIONS Temp. Range: -58 to 482°F (-50 to 250°C) Resolution: .0.1°C and 0.1 °F Accuracy: ±1°C (-10 to 100°C ), ±2°C (101 to 200°C ), ±3°C (-50 to -10°C ), ±5°C (200 to 250°C ) Power source: 2 x 1.5V button cell batteries (included) Dimensions: 5.4 x 10.8 x 1.2cm (2.1 x 4.2 x .5 inches) Weight with case: 85g (3 oz) Weight without case: 56.7g (2 oz)

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