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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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. Salt deters algae growth, detoxifies nitrite, and eliminates fish parasites and bacterial infections. 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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