Extech Waterproof Temperature Indicators

Extech Waterproof Temperature Indicators


The Extech Waterproof Temperature Indicator contains a fast-response sensor to measure temperature in liquids, semi-solids, and air.


  • Waterproof housing and sensor designed to meet IP65
  • User programmed High/Low set points
  • Fast response sensor
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The Extech Waterproof Temperature Indicator provides audible and visual alarm alerts when temperature levels are higher or lower than the user programmed high/low set points. The fast response sensor measures temperature in liquids, semi-solids, and air. LCD displays temperature reading, alarm indicator, and high or low alarm icons.

The TM20 includes a 0.78 inch stainless steel probe with 9.6 foot cable. The sensor measures temperature from -40°F to 158°F. The TM25 model includes a 4.1 inch stainless streel penetration probe with 5 foot cable. The sensor measures temperature from -40°F to 392°F.

The unit has a magnetic back and can be mounted on a metal surface, used on a desktop with the foot stand, or mounted on a wall. The waterproof housing and sensor are waterproof and designed to meet IP65 ratings.

Notable Specifications:
  • Basic accuracy: ±1.8°F/1°C
  • Max resolution: 0.1°
  • TM20 sensor temperature range: -40°F to 158°F (-40°C to 70°C)
  • TM25 sensor temperature range: -40°F to 392°F (-40°C to 200°C)
  • Dimensions:  3.4Lx2.2Hx1.2"D (86Lx57Hx30D mm)
  • Weight: 3.2oz (90g)
What's Included:
  • (1) Display with magnetic back
  • (1) Foot stand
  • (1) Temperature sensor
  • (1) CR2030 3V button battery
Image Part # Product Description Price Stock Order
Extech Waterproof Temperature Indicators TM20 Waterproof temperature indicator, standard probe
Drop ships from manufacturer
Extech Waterproof Temperature Indicators TM25 Waterproof temperature indicator, penetration probe
Drop ships from manufacturer

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