Therma 3 Industrial Thermometer

The ETI Therma 3 is a rugged, single-channel digital thermometer engineered for industrial environments such as HVAC, construction, and building maintenance. Designed and made in the UK, it supports Type K thermocouple probes (sold separately), offering versatile measurement capabilities across a broad –100 °C to 1,372 °C temperature range with a consistent 1 °C resolution. Built to last and simple to use, the Therma 3 combines reliability, affordability, and durability.

Sold excluding probe.

Key Features:

• Wide Temperature Range: Measures from –100 °C to 1,372 °C with 1 °C resolution

• Robust and Hygienic Build: Constructed with ABS housing embedded with Polygiene Biomaster antimicrobial additive

• Display & Alerts: Features a 12 mm LCD with hold function, low battery, and 'Err' open-circuit indicators

• Long Battery Life: Powered by 3× AAA batteries delivering up to 5 years (≈10,000 hours) of use. Includes automatic power-off after 10 minutes (user-disable option available)

• Good Accuracy: Accuracy rated at ±1 °C ±0.1%, suitable for general industrial needs

• Probe Compatibility: Compatible with ETI’s extensive range of Type K probes—sold separately—for surface, penetration, and specialized tasks

• Splash-Resistant Option: Can achieve IP64 water resistance with the optional silicone protective boot

• British-Made Trust: Designed and manufactured in the UK with a 2-year warranty and includes a traceable calibration certificate