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ETI Fridge/Freezer Thermometer w/ Remote Sensor + Optional Calibration

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Note: this product can be supplied as standard (without calibration certificate) or with a UKAS calibration certificate from ETI. Please note that the UKAS calibration applies only to the remote probe sensor, not the internal sensor.

Measure the temperature both inside a fridge and outside the fridge (room temperature) with this dual-sensor digital thermometer from ETI.

To measure room temperature, this thermometer uses its built-in internal sensor. To measure fridge or freezer temperature, simply insert the included remote probe (attached via a 1m flexible lead) into the fridge/freezer and mount using the suction pad or included mounting bracket.

This digital thermometer can measure temperature from -49.9 to 69.9°C with resolution of 0.1°C and accuracy of ±1°C. A built-in MAX/MIN function is included, allowing the user to calculate maximum and minimum temperatures taken over a period of time.

Both models also include a built-in audible alarm function with user-selectable high and low alarm limits. If a temperature is detected out of range, this alarm will sound.

ETI Fridge/Freezer Thermometer Key Features

  • Measure the temperature of a fridge and measure room temperature outside of the fridge
  • Dual sensors – internal sensor measures room temperature, remote probe sensor is placed inside fridge to measure internal temperature
  • Remote sensor has 1m PVC lead
  • Switch between measurement modes by pressing the ‘Probe’ button
  • Measurement range from -49.9 to 69.9°C
  • Record the MAX/MIN temperature taken over a period of time
  • Adjustable high/low alarm limits with audible tone
  • Remote probe can be mounted onto the internal wall of a fridge using the including suction pad or mounting bracket
  • Durable ABS case with food-stand for mounting on a shelf
  • 5000 hour battery life on a standard AAA battery
  • Celsius/Fahrenheit measurement modes
Part Code810-210

ETI 810-210 & 891-210 Technical Specifications

Temperature Range

-49.9 to 69.9°C






1.5V AAA

Battery Life

5000 hours


Custom LCD


15 x 51 x 73mm



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