HM Digital Water Quality Testers, TDS Meters |
HM Digital product list
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HM Digital TDS-EZ 0-9990 PPM Water Quality Tester (TDS-EZ) HM TDS EZ Water Quality Tester is ideal for all your basic water testing needs including checking the TDS in your drinking water, food & coffee, Aquariums and more. This easy-to-use tester offers the best value for the the price.
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Our Price:
$15.95 Retail: You Save 6%!  |
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HM Digital COM-100 Water Quality Tester (COM-100) The HM Digital COM-100 Water Quality Tester is a combination electrical conductivitiy meter, TDS meter, and temperature reader all in one! This waterproof device is ideal for a variety of applications including scientific testing & much much more.
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Our Price:
$59.95 Retail: You Save 8%! |
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HM TDS-3 Meter with Carrying Case (TDS-3) HM TDS-3 Meter is ideal for both residential and commercial applications including but not limited to water purification, waste-water regulation, aquaculture, hydroponics, and residential RO applications. Measurement range is 0-9990 ppm.
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Our Price:
$22.20 Retail: You Save 40%! |
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HM Digital AquaPro AP-1 Water Quality Tester - TDS (AP-1) The HM Digital AquaPro AP-1 Water Quality Tester is a hand-held digital water quality tester which is used to test the amount of total dissolved solids (TDS) and other impurities in your water supply. Useful for both consumers and hobbyists, it can
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Our Price:
$25.79 Retail: You Save 40%! |
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HM PH-200 Waterproof pH Meter (PH-200) The HM PH-200 Waterproof pH Meter is a highly accurate, professional grade digital pH and temperature meter. Incredibly accurate, the PH200 is perfect for both consumer and commercial use.
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Our Price:
$79.95 Retail: You Save 6%! |
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HM Digital AquaPro AP-2 Water Quality Tester - EC (AP-2) The HM Digital AquaPro AP-2 Water Quality Tester is a hand-held digital water quality tester which is used to test the electrical conductivity (EC) of water. It also tests the temperature of water, and features Automatic Temperature Comp
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Our Price:
$25.79 Retail: You Save 40%! |
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357A Replacement 1.5v Button Cell Battery - 2-Pack (357A) The HM Digital 1.5 V Button Cell Battery Replacement is a battery replacement for your HM digital water monitor. This battery replacement will keep your HM TDS, TM, COM, and DM model working at its best.
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Our Price:
$2.00 Retail: You Save 33%! |
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HM Digital FM-1 Water Filter Monitor (FM-1) The HM Digital FM-1 Water Filter Monitor is a five-stage water filter monitor that uses five independent timers to let you know when to change your filters. The timers begin when the water is turned on and count down in months or days.
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Our Price:
$29.95 Retail: You Save 33%! |
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HM Digital PSC-150 Water TDS Control System (PSC-150) The HM Digital PSC-150 Water TDS Control System is a total dissolved solids (TDS) controller that monitors and controls the electrical conductivity (EC) levels and TDS levels of water. This TDS meter has a four-digit LED display with an on-screen te
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Our Price:
$174.95 Retail: You Save 1%! |
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HM Digital COM-100 Replacement TDS Sensor SP-C1 (SP-C1) The HM Digital COM-100 Replacement TDS Sensor SP-C1 is a combination water testing meter and is perfect for all water quality testing applications. The HM Digital SP-C1 measures electrical conductivity, (EC) total dissovled solids, (TDS) and tempera
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Our Price:
$29.95 Retail: You Save 23%! |
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HM Clean Tap Monitor, CT-1 (CT-1) HM Clean Tap Monitor, CT-1, attaches to any standard faucet and monitors the quality of your filtration system. The indicator unit which sits at the base of your faucet provides three lights that indicate when your filter should be changed.
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Our Price:
$25.00 Retail: You Save 29%! |
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HM Digital PH-200 Replacement pH Sensor SP-P2 (SP-P2) The HM Digital PH-200 Replacement pH Sensor SP-P2 is a pH testing meter that is ideal for all pH testing applications. This HM Digital pH meter measures pH and temperature, featuring a simultaneous temperature display. This pH monitor has auto-rangi
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Our Price:
$48.99 Retail: You Save 2%! |
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HM Digital TM-1 Digital Thermometer (TM-1) The HM Digital TM-1 Digital Thermometer is an industrial grade digital thermometer for use in a variety of applications. This digital thermometer features a durable 2.5" stainless steel probe with a 20" cable. This thermostat with probe also include
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Our Price:
$23.99 Retail: You Save 20%! |
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HM Digital QC-1 TDS & Conductivity Monitor (QC-1) The HM Digital QC-1 TDS & Conductivity Monitor is a monitor that checks your water for conductivity levels and TDS (total dissolved solids). This conductivity monitor features eight programmable set points done by dip switch and bright LED lights fo
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Our Price:
$21.95 Retail: You Save 45%! |
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HM Digital SM-1 TDS Monitor (SM-1) The HM Digital SM-1 TDS Monitor is an inline TDS monitor that can be used to electronically test your water for total dissolved solids. The HM digital sm-1 TDS meter comes factory calibrated with a 342 ppm NaCL solution, meaning that you can expect
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Our Price:
$24.50 Retail: You Save 13%! |
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HM Digital PS-100 Water TDS Control System (PS-100) The HM Digital PS-100 Water TDS Control System is a panel mount TDS controller that monitors for total dissolved solids in your water. This TDS Controller features a large, bright L.E.D display as well as an alarm that sounds when TDS levels rise to
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Our Price:
$144.95 Retail: You Save 1%! |
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HM Digital DM-2 In-Line Dual TDS Monitor 5-Pack (DM-2) The HM Digital DM-2 In-Line Dual TDS Monitor is a water tester which is used to test the amount of total dissolved solids (TDS) in water. It is a new model of the HM DM-1 In-Line Dual TDS Monitor. The DM-2 is highly efficient and accurate due to its
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Our Price:
$227.50 Retail: You Save 22%! |
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HM Digital ORP-200 ORP Meter Water Tester w/ Temp. (ORP-200) The HM Digital ORP-200 ORP Meter Water Tester with Temperature Gauge is a water tester used to test the Oxidation Reduction Potential (ORP) in your water supply. It also tests the temperature of water, and features Automatic Temperature Compensation
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Our Price:
$92.99 Retail: You Save 15%! |
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HM Digital SP-O2 ORP Sensor Replacement for ORP200 (SP-O2) The HM Digital SP-O2 ORP Sensor Replacement is an Oxidation Reduction Potential (ORP) replacement sensor for the HM Digital ORP-200 ORP Meter Water Tester.
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Our Price:
$53.99 Retail: You Save 10%! |
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HM Digital PTDS-4TM Pocket Size TDS Meter w/ Temp (TDS-4TM) The HM Digital PTDS-4TM Pocket Size TDS Meter with Temperature Gauge is a hand held digital water quality tester which is used to test the amount of total dissolved solids (TDS) and other impurities in water. This pocket size HM Digital water test T
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Our Price:
$41.00 Retail: You Save 18%! |
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HM TDS-4 Pocket Size TDS Meter, TDS4 10-Pack (TDS4) HM TDS-4 Meter will monitor the TDS (Total Dissolved Solids) levels for drinking water, water filters, hydroponics, Aquariums, Food and Coffee, Pools and Spas and residential RO applications. Measurement range is 0-9990 ppm.
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Our Price:
$262.50 Retail: You Save 25%! |
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HM Digital pH Buffer Solution Variety Pack (pH Buffer) The pH Buffer Solution Variety Pack from HM Digital is lightweight, economically priced and has an indefinite shelf life. Easy to use. Preparation directions are included directly on the bottle.
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As Low As:
$8.95 Retail: You Save 14%! |
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HM Digital TDS Calibration Solution - 342 PPM (342 Cal Sol) HM Digital TDS Calibration Solution can be used periodically to re-calibrate your TDS meter or Water Quality Tester.
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Our Price:
$8.75 Retail: You Save 10%! |
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HM DM-1 In-Line Dual TDS Monitor 10-Pack (DM-1) The HM DM-1 In-Line Dual TDS Monitor allows you to measure the tap water going into your filteration system versus the filtered water coming out of your system at any time. Stop guessing the performance of your filtration system with the DM1!
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Our Price:
$309.90 Retail: You Save 26%! |
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HM Digital TDS Calibration Solution - 1000 PPM (C1000) The HM Digital TDS Calibration Solution (1000 PPM) is used to periodically to re-calibrate your HM Digital TDS meter or HM Digital Water Quality Tester. The 1000PPM TDS Solution is designed for use with beverages, brewing kits, aquariums, pools, spa
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Our Price:
$4.95 Retail: You Save 17%! |
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Filters Fast - HM Digital
" I just received my filters - thank you for the excellent work that you guys do! I'm a very happy customer. " - Mike, San Marcos, TX
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