Water Test Meters: WPT100 TDS Meter

Water Purity Tester, Pen Style (WPT100) WaterProof with Protective Cap & Battery

The WATER PURITY PEN can be helpful to determine possible toxicity in water based fluids. This portable electronic device can quickly and easily show a TDS (Total Dissolved Solids) reference value of the sample being tested on a conductivity basis*.


  • Identifies the quality of drinking water within three seconds
  • Tests the degree of secondary pollution in the water dispenser
  • Tests the degree of pollution on secondary water supply
  • Tests the irons, bacterium and toxic elements in the water quickly
  • Waterproof to approximately 9.5 ft (3 m)
  • Protective cover with integral pocket clip


  • Display: Left column shows purity data and right column shows the purity figure
  • Accuracy: 5%
  • Response time: < 1 second
  • Recovery time: < 2 seconds
  • Power supply: pre-installed within the unit (not replaceable); average life expectancy is approximately 3 years
  • Operating temperature range: 41 to 122F (5 to 50 C)
  • Operating humidity range: less than 95% RH
  • Dimensions: 5.7" x 0.9" x 0.7" (144 x 22 x 18mm)
  • Weight: 0.9oz (24g)

* It does not replace special purpose water quality analysis designed to identify toxins and determine toxicity.

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