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Fishpond Riverkeeper Digital Thermometer is compact and easy to handle. It is the only IPX7 submersible-rated digital thermometer designed by and for fly anglers. It has a rugged exterior, large UV-filtered screen, replaceable battery, and a durable aluminium probe. The Fishpond Riverkeeper Digital Thermometer is built to withstand years of outdoor use.


  • Compact and easy to handle
  • Provides rapid water temperature readings
  • Ultrasonically welded, recycled polycarbonate main body
  • Soft silicone outer case
  • Large ultrasonic polycarbonate screen with a UV filter
  • Replaceable CR2025 battery (1 included)
  • CE-certified and IPX7 submersible rated
  • Carabiner-style attachment clip suitable for up to 1″ webbing width
  • Measures temperature from -34°C to 54°C with a tolerance of +/- 1 °C
  • Durable aluminium probe



  • To turn the thermometer on or off, hold down the button for 2 seconds. The thermometer will automatically turn off after 3 minutes of inactivity.
  • To switch between °F and °C, quickly press the button three times
  • Submerge thermometer in water and wait for temperature to stabilize
  • If you see the error code “HHH,” it means the temperature is above 130°F. If you see the error code “LLL,” it means the temperature is below -30°F


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