Water Testing

Water Testing, TDS Meters and Test Supplies
  1. ITS-Chlorine-30- 1000

    Regular Price: $27.99

    Special Price $19.99

    Free & Total Chlorine test strips are perfect for determining whether or not you have the correct amount of sanitizer present. ITS #480655 UPC # 809762806550 Learn More
  2. HM DIGITAL- TDS Meter EZ-HMD To Test for total dissolved solids in Water -1000

    Regular Price: $35.99

    Special Price $19.99

    TDS Meter - Tester To Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester Learn More
  3. ITS-Iron-25-1000

    Regular Price: $27.99

    Special Price $19.99

    Ida's Iron Check is designed to specifically react with iron, without interference from other heavy metals that may be present. ITS # 481046 UPC #809762810465 Learn More
  4. ITS-Copper-25-1000

    Regular Price: $27.99

    Special Price $19.99

    John's Copper water test is an alternative to wet chemical copper tests. Quick results are obtained in less than 1 minute ITS # 480042 UPC #809762800428 Learn More
  5. TDS-N TDS Meter.  Test your water for total dissolved solids.

    Regular Price: $39.99

    Special Price $27.00

    TDS-N TDS Meter. Test your water for total dissolved solids. Learn More
  6. TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter

    Regular Price: $49.99

    Special Price $37.99

    As low as: $17.99
    TDS Meter - Tester. The Only Way To Know If Your Reverse Osmosis RO Membrane Is Performing Correctly - Tests for TDS - Total Dissolved Solids. A Must For All RO System Owners. Compare Incoming Feed Water To Treated Water - Replace Membrane If Less Than 80% of TDS Is Being Removed Learn More
  7. ITS-pH-Alkalinity-50-1000
    $19.99
    pH & Total Alkalinity test strips are designed for both measurements. Gives reproducible results for each test separately. ITS # 480005 UPC #809762800053 Learn More
  8. ITS-Hardness-50-1000
    $19.99
    Total Hardness test strips offer a wide range of detection and calibrated to be both accurate and sensitive. ITS # 480008 UPC #809762800084 Learn More
  9. TDS-3 Handheld Pure Water Testing Meter For Total Dissolved Solids

    Regular Price: $59.99

    Special Price $39.99

    As low as: $24.99
    TDS-3 Handheld Pure Water Testing Meter For Total Dissolved Solids With Carrying Case. HM Digital. 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 Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver. 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) Learn More
  10. TDS Meter Inline Water Tester DM1 - HM Digital Dual Mode Reading

    Regular Price: $49.99

    Special Price $39.99

    As low as: $19.99
    TDS Water Meter - HM Digital DM1 - Dual Mode - Installs Inline - Check the TDS level with the push of a button. Now you can easily check to make sure the water from your reverse osmosis system is top quality. Measure the tap water coming in vs. the purified water going out of your system at any time. Very easy installation. 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. Always know if your RO membrane is performing correctly! Learn More
  11. TDS Water Meter Dual Mode Readings - DM2 HM Digital Professional Grade

    Regular Price: $69.99

    Special Price $49.99

    As low as: $29.99
    TDS Meter Dual Mode Readings - Professional Grade - Easily Installs Inline - Very Simple To Use. Measure the tap water coming in vs. the purified water going out of your system at any time. Use the meter to determine when the filters need to be changed. 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. Learn More
  12. WATERPROOF EC / TDS / TEMP COMBO METER / PROFESSIONAL TESTER - HM Digital COM-100

    Regular Price: $76.95

    Special Price $59.99

    As low as: $47.99
    FOR THE PROFESSIONAL ! ------ COMBO METER / TESTER FOR EC / TDS / TEMP - WATERPROOF. The only handheld TDS meter / EC meter with full scale digital calibration. A water tester that is perfect for both consumer or commercial use. 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. Learn More
  13. Hanna ® TDS Calibration Solution Packet # 70032 For Water Testing TDS Meters

    Regular Price: $8.99

    Special Price $4.99

    As low as: $2.99
    Hanna ® TDS Calibration Solution 1382 PPM for calibrating TDS Meters / Testers to use for testing Reverse Osmosis RO Systems. # 70032 Learn More
  14. HM DIGITAL- Replacement Sensor SP-P2 for PH-200 PH Meter- 1000

    Regular Price: $59.99

    Special Price $45.99

    As low as: $39.99
    HM Digital SP-P2 Replacement Sensor for PH-200 PH Meter Learn More
  15. PH Buffer Solution From HM Digital - 12 Pillow Packets

    Regular Price: $19.99

    Special Price $13.99

    As low as: $10.99
    HM Digital's pH buffer solution comes in powder form, so it's lightweight, takes up very little space, is inexpensive and has an indefinite shelf life. Variety pack of pH buffer solution. Simple to use. Powder has an indefinite shelf life. Total volume: 1.2 liters. Each powder packet makes 100 ml of solution (when mixed with distilled or deionized water) Contents: 3 packets of 4.0 pH, 6 packets of 7.0 pH, 3 packets of 10.01 pH Extra: Includes one empty 100 ml bottle Accuracy: +/- 0.02 pH at 25 degrees Celsius Preparation directions included with the pack. Learn More
  16. Hanna ® pH 7.01 Buffer Solution HI7007M

    Regular Price: $23.99

    Special Price $13.99

    As low as: $11.99
    Hanna ® pH 7.01 Buffer Solution HI7007M used to calibrate meters. Hanna pH buffers are made of Potassium Dihydrogen Phosphate and Disodium Hydrogen Phosphate and are standardized with a pH meter that is calibrated to NIST primary standard buffer solutions (NIST 186Ie & 186IIe and NIST 158g S.R.M.). 230 ml bottle. Learn More
  17. Precipitator Replacement Rods & Fuses Repair Kit for Water Testing- 1000

    Regular Price: $29.99

    Special Price $19.99

    As low as: $9.99
    Precipitator Replacement Rods and Fuses Repair Kit includes 4 iron rods, 2 aluminum rods and 2 fuses. Don't let a demo fail because you didn't have the repair parts on hand. Be sure to order at least one kit with your new Precipitator. Also fits the old HM Digital PR-1 precipitators. Learn More