ETI Therma 22 Plus Waterproof Thermocouple & Thermistor Thermometer

The ETI Therma 22 Plus is a waterproof handheld thermometer designed for professional food temperature monitoring. It uses a Lumberg screw-locking connector to accept a wide range of interchangeable Type T thermocouple and thermistor probes, making it a versatile instrument across different checking tasks without needing multiple dedicated units. Note that the unit is sold without a probe — the appropriate probe should be selected to match the intended application.

In a working kitchen or food production environment, the ability to wash down equipment thoroughly is not optional — it is a hygiene requirement. The Therma 22 Plus carries an IP66/67 waterproof rating, meaning it can be submerged or rinsed under a running tap without risk of damage. The ABS housing also incorporates Biomaster antimicrobial protection, which helps reduce bacterial growth on the casing surface between cleans — a practical consideration in high-contact environments.

From an operational standpoint, the unit offers several features that support accurate, efficient temperature checking during service:

• Large backlit LCD display for clear reading in poor light conditions
• Max/min and hold functions to capture and review temperature readings
• Auto-power off after ten minutes to preserve battery life
• Open circuit and low battery indication to avoid missed or inaccurate readings
• Supplied with a free traceable certificate of calibration; UKAS 3-point certification is also available

The thermometer meets the European Standard EN 13485, which is relevant for food businesses subject to due diligence requirements around temperature monitoring equipment. The included calibration certificate supports HACCP documentation without requiring additional third-party verification at point of purchase.

The Therma 22 Plus is well suited to catering operations, food production sites, and hospitality kitchens where a reliable, cleanable probe thermometer is needed day to day. It is a practical mid-range instrument — if your operation requires data logging, wireless connectivity, or a broader probe range, it is worth discussing more specialist options with us before ordering.

If you are unsure which probe type best suits your checking requirements, or whether this model fits your HACCP procedures, we are happy to help you work that through.