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Hm Digital In-Line Dual Tds Monitor Model Dm-1
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... More Details
Item Number: 136760
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Usually ships in 3 to 5 days.
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$26.27
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PH-80: pH HydroTester
NEW! The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics gardening, pools spas, aquariums reef tanks, water ionizers, drinking water and more.
FEATURES:
Measures pH and Temperature... More Details
Item Number: 136354
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Usually ships in 24 hours
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$43.23
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HM Digital Meter TDS-3 Handheld TDS meter
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 or toolbox at all times!
Features
Ideal for commercial u... More Details
Item Number: 131941
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Usually ships in 3 to 5 days.
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$20.68
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HM Digital Meter COM-100 Waterproof EC/TDS/Temp Combo
FEATURES
* Measures electrical conductivity (EC), total dissolved solids (TDS) and temperature.
* Three different calibration options (KCl, 442TM, NaCl), each with its own non-linear conversion factor.
* Automatic Temperature Compensation (ATC) us... More Details
Item Number: 131940
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Usually ships in 3 to 5 days.
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$55.86
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HM Digital Meter AP-1 AquaPro TDS/Temperature Meter
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 be use... More Details
Item Number: 134875
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Usually ships in 3 to 5 days.
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$26.71
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HM Digital Meter PH-200 Waterproof pH/Temperature 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, so you can see if it's dried up
Waterproof housing
Simultaneous temperature di... More Details
Item Number: 134111
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Usually ships in 3 to 5 days.
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$74.47
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Usually ships in 3 to 5 days.
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$27.54
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Usually ships in 3 to 5 days.
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$33.69
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