Water Test Kits
Water Test Kits & TDS Meters for testing water quality fom HM digital. High quality professional testers at affordable prices. Test to see if you reverse osmosis membrane water filter is operating efficiently and measure the percent of rejection.
Products
HM COM100 TDS METER W/EC & Temp
$64.95
$64.95
Great for testing the percent rejection of your reverse osmosis membrane as well as electrical conductivity of water & tempurature.
Features
HM TDS Meter TDS-3
$24.95
$24.95
HM TDS 3 Water Tester is the same tester we've used in our water business for the past 8 years. It's durable, reliable and has an auto off feature that shuts the unit down, so your batteries stay fresh. By using the TDS meter, you can tell if your RO system is operating properly or if you need a new reverse osmosis membrane.