TDS & PPM METERS

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HM DIGITAL Product Details<br /> The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.<br /> <br /> Measures electrical conduct
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
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Product Details
The COM-80 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.

Measures electrical conduct
$47.99
HM DIGITAL Ideal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficent and accurate due to its advanced microprocessor technology. It features a measurment range of 0-9990 ppm. From 0-999 ppm, the resolution is in increments of
TDS-3 Handheld TDS meter
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Ideal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficent and accurate due to its advanced microprocessor technology. It features a measurment range of 0-9990 ppm. From 0-999 ppm, the resolution is in increments of
$29.99
BLUE LAB BLUELAB PPM PEN
Measures conductivity and temperature.
Selectable units for conductivity and temperature.
Backlit LCD display with low battery warning.
Successful calibration indicator and calibration is optional.
Fully waterproof.
Auto off function and hold reading
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BLUELAB PPM PEN
$99.99