This digital TDS pocket tester by HM Digital is used for measurement of Total Disolved Solids or TDS (mg/L) in water. The TDS reading of water in a cup collected from ...

HM Digital TDS-EZ Water Quality TDS Tester. $39.99. Availability: In stock. 0-9990 ppm Measurement Range; 1 ppm Resolution ... With the push of a button, the TDS-EZ ...