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Give it purpose - fill it with water filters, air filters, refrigerator filters, and more.
The HM Digital COM-100 Water Quality Tester is a combination electrical conductivity meter, TDS meter, and temperature reader all in one! This waterproof device is ideal for a wide variety of applications including scientific testing, ecology testing, water treatment and much much more.
The COM-100 EC/TDS/Temp Combo Meter Features:
The HM Digital COM-100 Water Tester Specifications:
The COM100 includes a cap, batteries, and lanyard.