We are currently monitoring the impact of COVID-19 around the world. Currently, certain supply chains may be affected resulting in delays.
Our offices are currently closed to the public. In-Store pick-up is not available at this time.
  • call 1-888-378-9021
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We will be closed for the holidays December 31 & Jan 1.

Spectrum Labs® Test and Demo Kits

HM Digital TDS-4 Pocket Meter

HM Digital TDS-4 Pocket Meter. Range: 0 - 9990 ppm (mg/L) Resolution: 0-999: 1 ppm; 1000-9990 10 ppm (indicated by a 'x10' icon) Accuracy: +/- 2%... more info