837-1 Salinity & Temp Meter, Pen Type Salt Water Quality Tester ATC NaCl 0~70 ppt, Handheld Measurement Monitor Tester, for Saltwater, Hydroponics, Pool, Aquarium, Fish Pond, Spa, Monitoring & Testing

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This Dual meter is designed to measure the salt content in liquid without the need for conversions. It measures both temperature (ºC/°F) and salinity (ppt) and displays simultaneously on its clear LCD. It has an IP65 Rating, waterproof and dustproof housing and waterproof membrane keypad. 

Applications & Usage:

It quickly and accurately measures salt concentration in koi ponds. Ideal for checking salt in fish hospital tanks and tropical aquariums, water monitoring, seawater-prepared food solutions, breeding ponds, aquariums, holding tanks and more!


  • Built-in NaCL Temperature coefficient 
  • Conductivity to TDS conversion factor 
  • Multipoint calibration guarantees full range accuracy
  • IP65 water resistant housing
  • Data Hold function
  • °C/°F switchable temperature unit
  • Allow factory default resetting 
  • With over & below the limit value indicator 
  • Low battery indicator 
  • Self-diagnostic for error messages
  • Auto power off if idle or no operation for 20 minutes



  • Measuring Range: 
    • Salinity: 0.00~10.0 ppt (NaCL) and 10.1~70.0ppt (NaCL) 
    • Temperature Compensation: 0~50°C 
  • Accuracy: 
    • Salinity: ±1%FS ±1 digit or ±2%FS ±1 digit (10.1~70.0ppt) 
    • Temperature: ±0.5°C 
  • Resolution: 
    • Salinity: 0.01ppt or 0.1ppt (10.1~70.0ppt) 
    • Temperature: 0.1°C/°F

  • TDS Factor: Built-in NaCL conductivity to TDS conversion factor
  • Built-in NaCL Temperature coefficient
  • Normalization Temperature: Fixed at 25°C
  • Operating Environment: 0~50°C; <90% Humidity
  • Power Supply: 4 x LR44 batteries
  • Weight: 0.14kg
  • Dimension: 165 x 35 x 32mm

Set Includes: 

  • 1 x Salinity and Temperature Meter
  • 4 x 1.5V Button Batteries (FREE)
  • English Quick Start Guide
  • Standard packaging box

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