HM Digital, Handheld TDS Meter

HM Digital - Handheld Electronic (TDS), Spot-Free Water Quality Tester

Spot-Free Water Quality Tester 

Instantly test your spot free water quality now.  Results shown on (LCD) digital display.

Spot-Free Water quality that is below 20.0 (ppm), Parts per Million as measured by a TDS meter, is perfect free vehicle washing/rinsing.

Spot-Free Water Quality that is 10.0 (ppm), Parts per Million is the industry standard and perfect for window and solar panel cleaning.