The Therma 22 Plus Waterproof Thermometer is housed in a robust ABS enclosure to prevent water ingress during use, submersion, or wash down. With a waterproof rating of IP66/67, the Therma 22 Plus is ideal for harsh environments where even the probe connection needs to be waterproof.

Therma 22 Plus probes are configured with a Lumberg watertight screw-locking connector to keep the probe securely connected and waterproof. Select from any of our type T and Thermistor probes and the Therma 22 Plus will measure the correct temperature automatically without changing settings.

With thermistor probes the Therma 22 Plus delivers system accuracy of ±0.7°F (±0.4°C) or better*. This includes all meter, probe and interchangeability errors. Add a replacement thermistor probe later and you'll still be within spec. With thermistors, the Therma 22 Plus reads from -40 to 302°F depending on the range of the probe itself.

Our Type T Thermocouple probes are typically faster than thermistors, they cover wider ranges and we offer a larger variety of probe types. When reading thermocouples, accuracy is ±0.9°F (±0.5°C)*. Using thermocouples, the Therma 22 Plus reads from -328 to 752°F depending on the range of the probe. With a battery life of 10,000 hours, the Therma 22 Plus will never need a battery change.

If you're looking for a rugged meter with the flexibility of dual sensor types, this is the unit for your toolkit. You won't find a better value with this level of performance!

*Depending on range. See Specifications for more detail.