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HM Digital Water Quality Testers, TDS Meters

 

HM Digital full product list:


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.


In stock! Ships in 1 business day.
HM Digital TDS-EZ 0-9990 PPM Water Quality Tester
Our Price: $15.59
Retail: $18.99
You Save 18%!

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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


In Stock! Ships in 14 to 15 business days.
HM Digital COM-100 Replacement TDS Sensor SP-C1
Our Price: $31.95
Retail: $38.99
You Save 18%!

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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.


In Stock! Ships in 10 to 11 business days.
HM Digital COM-100 Water Quality Tester
Our Price: $59.95
Retail: $70.99
You Save 16%!

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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


Special Order. Ships in 8 days.
HM Digital PH-200 Replacement pH Sensor SP-P2
Our Price: $50.99
Retail: $58.99
You Save 14%!

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HM TDS-4 Pocket Size TDS Meter, TDS4 10-Pack 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.


In Stock! Ships in 8 to 9 business days.
HM TDS-4 Pocket Size TDS Meter, TDS4 10-Pack
Our Price: $179.50

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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.


In Stock! Ships in 3 to 4 business days.
HM Digital pH Buffer Solution Variety Pack
As Low As: $8.95
Retail: $11.99
You Save 25%!

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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

Free shipping within the continental United States!

In Stock! Ships in 5 to 6 business days.
HM Digital ORP-200 ORP Meter Water Tester w/ Temp.
Our Price: $87.95
Retail: $108.99
You Save 19%!

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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


In Stock! Ships in 1 to 2 business days.
HM Digital TM-1 Digital Thermometer
Our Price: $19.95
Retail: $29.99
You Save 33%!

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HM TDS-3 Meter with Carrying Case 10-Pack
(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.


Special Order. Ships in 8 days.
HM TDS-3 Meter with Carrying Case
Our Price: $222.00

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HM PH-200 Waterproof pH Meter 4-Pack
(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.


Special Order. Ships in 8 days.
HM PH-200 Waterproof pH Meter
Our Price: $319.80

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HM Digital AquaPro AP-1 Water Quality Tester - TDS 10-Pack
(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


Special Order. Ships in 15 days.
HM Digital AquaPro AP-1 Water Quality Tester - TDS
Our Price: $257.90

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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.


Special Order. Ships in 10 days.
HM Digital SP-O2 ORP Sensor Replacement for ORP200
Our Price: $55.99
Retail: $64.99
You Save 14%!

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HM Digital PTDS-4TM Pocket Size TDS Meter w/ Temp 10-Pack
(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


Special Order. Ships in 8 days.
HM Digital PTDS-4TM Pocket Size TDS Meter w/ Temp
Our Price: $222.00

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HM Digital AquaPro AP-2 Water Quality Tester - EC 12-Pack
(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


Special Order. Ships in 24 days.
HM Digital AquaPro AP-2 Water Quality Tester - EC
Our Price: $309.48

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HM Digital DM-2 In-Line Dual TDS Monitor 5-Pack 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


Special Order. Ships in 8 days.
HM Digital DM-2 In-Line Dual TDS Monitor 5-Pack
Our Price: $227.50

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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


Special Order. Ships in 39 days.
HM Digital QC-1 TDS & Conductivity Monitor
Our Price: $20.30
Retail: $39.99
You Save 49%!

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HM Digital SM-1 TDS Monitor 10-Pack
(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


Special Order. Ships in 12 days.
HM Digital SM-1 TDS Monitor
Our Price: $245.00

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357A Replacement 1.5v Button Cell Battery 10-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.


Special Order. Ships in 12 days.
357A Replacement 1.5v Button Cell Battery
Our Price: $40.00

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HM Digital SP-1 Sensor Probe For Panel Mounted Controllers 10-Pack
(SP-1)

The HM Digital SP-1 Sensor Probe For Panel Mounted Controllers is a durable, plastic probe that features stainless steel construction and is manfactured with high-quality construction.


Special Order. Ships in 4 days.
HM Digital SP-1 Sensor Probe For Panel Mounted Controllers
Our Price: $529.90

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