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HM Digital Water Quality
HM Digital Pocket TDS
HM Digital Pocket TDS Water Quality Testing Meter
sp_hm_pocket_tdsHM Digital Pocket TDS Water Quality Testing Meter is the smallest and lightest TDS meter also comes with a built-in digital thermometer. It is a true pocket size meter, comfortably fitting into a shirt pocket without adding bulk. Model: TDS-4TM-A. Weight: 1.2 ounces. Dimensions: 5.5" x .9" x .55".

Exclusive features:
  • Includes an internal digital thermometer (0-80 deg celsius).
  • Hold Function - Saves measurements for convenient reading and recording.
  • Auto-off function - Turns off meter after 10 minutes of non-use to conserve batteries.
  • Dual Range - Measures from 0 - 9990 ppm (mg/L), with a resolution of 1ppm, 1 deg celsius. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking x10 image.
  • Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
  • Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver.
  • Power source: 2 x 1.5V button cell batteries (included)(357A).
  • Battery life: 1000 hours of usage.
  • 3 year mfg warranty.