Therma 20 Thermometer | AJ Stuart

Therma 20 Thermometer

Product code: UTTHERM00020
(£99.22 inc. VAT)
Out of Stock - Available to order 5-7 Days Delivery

The Therma 20 Thermometer is a highly accurate thermometer which has been specially designed for use in the catering and food industry, with HACCP standards and health and safety procedures in mind. This thermometer measures temperature in the range of -39.9°C to 149.9°C and is used for the Therma 20 probes.

The Therma 20 thermometer features an easy-to-read LCD screen and is enclosed within an ergonomic ABS case that has a 'Biomaster' additive to reduce the growth of bacteria. It has a low battery indication and will automatically turn off after 10 minutes therefore maximising battery life. The high system accuracy of this thermometer is guaranteed for life due to the advanced electronics used and it has an easy to use Lumberg screwlocking type connector.

This thermometer can be used in low ambient working temperatures down to -20°C and therefore meets the requirements of the European Standard EN13485 for the temperature monitoring of quick frozen foods.

Please note that this thermometer is exclusive of the probe. A protective boot, wall bracket and thermistor test cap are also available to purchase to accompany this item. A range of interchangeable thermistor probes are available.

A traceable certificate of calibration is included.

Temperature range: -39.9°C - 149.9°C
Resolution: 0.1°C
Accuracy: ±0.4°C (-10 to 70°C)
Battery: 3 x 1.5V AAA (Included)
Battery life: minimum 5 years (20000 hours)
Dimensions: 25 x 56 x 128mm
LCD display: 12mm

Check the availability of our products in the options above under the ‘Availability’ column. If your goods are in stock, you can choose from our ‘Next Day’ or ‘2-5 Days’ delivery option at the checkout, depending how quickly you need your goods delivered.

If your goods are currently out of stock, the ‘Availability’ column will give you an idea of how long it will take for these goods to be delivered, for example- ‘3-5 Days Delivery’. Please note that this only an estimate and goods may be available sooner or later than expected.

If you have any specific delivery instructions, please add these to the notes field in the checkout and we’ll be sure to let our couriers know of any special instructions you have regarding your delivery.


Normal Lead Time​

Cost over £75

Cost under £75

Royal Mail

(under 2kg, NI & GB Only)

2-4 Days




(NI, GB, ROI, excl. Highlands & Islands)

GB: 2-5 working days NI/ROI: next day



Next Day Delivery

(GB excl. Highlands & Islands)

Next Day



Highlands & Islands (over 2kg)

2-5 working Days



Sign Up for Exclusive Offers and Announcements