837-3_bag Pentype TDS / Salinity / Temperature Tester Water Quality Meter ATC Multiple Units (ppt, ppm, S.G., %, °C, °F) Digital Tool for Saltwater Monitoring & Testing IP65 Waterproof Housing

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This Water Quality Tester measures TDS (Total Dissolved Solid), Salinity and Temperature of any type of water sample. It is used in Home, School, Professional measuring purposes including Laboratory Test, Water Treatment Business, Aquaculture, Hydroponics, Aqua Farm, Swimming Pool and other related industries.


  • IP65 Waterproof housing
  • Wide measuring range with ATC (Automatic Temperature Compensation)
  • Dual display (Salinity/TDS & Temperature)
  • Data hold function
  • Auto-ranging function
  • Pen size, easy to fit into pocket
  • Low battery indicator
  • Manual and Auto power off
  • °C/°F switchable temperature unit
  • Salinity units: ppm / ppt / % / S.G. specific gravity
  • TDS units: ppm / ppt
  • Multi points and one touch calibration
  • Can be calibrated with conductivity buffer solution which is the most easy available option


  • Measurement Range
    • Salinity: 0~9999ppm or 10.0~100.0ppt or 0.0%~10.0% or 0.950~1.080(S.G) based on NaCl
    • TDS: 0~9999ppm or 10.0~160.0*f ppt (f is TDS factor)
    • Temperature: -5~60.0°C (23~140°F)
  • Accuracy
    • Salinity & TDS: ±1%F.S ±1 digit 
    • Temperature: +/-0.5°C
  • Resolution
    • Salinity: 1ppm or 0.1 ppt or 0.1% or 0.001(S.G)
    • TDS: 1ppm or 0.1ppt
    • Temperature: 0.1
  • TDS Factor: 0.3~1.00 Built-in NaCl conductivity to TDS conversion factor
  • Temp. coefficient: Built-in NaCl Temp. Coefficient
  • LCD Size: 30(H) x 18(W)mm
  • Operating Environment: 0~50°C (32~122°F) / <80%RH
  • Storage Environment: 0~60°C (32~140°F) / <90%RH
  • Sensor life time: approx. >6 months (with good maintenance)
  • Battery: 4 x LR44 button battery
  • Dimension: approx. 165(L)x35(W)x32(H)mm
  • Weight: approx. 115g

Set Includes:

  • 1 x Salinity / TDS Meter
  • 4 x LR44 button battery
  • Carrying Pouch
  • English Instruction Manual
  • Standard Factory Packaging

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