Therma 1 Industrial Digital Thermometer

£60.00 ex VAT

£72.00 inc VAT

The Therma 1 industrial digital thermometer is an affordable and easy-to-use device designed for various industrial applications such as building and HVAC

  • 0.1 °C resolution
  • Free traceable certificate of calibration included
  • Minimum 5 years of battery life
  • 2-year guarantee
  • Interchangeable thermocouple probes available
  • Polygiene BioMaster product protection

Sold excluding probe

Add Accessories

Add calibration certificate (10-14 working days)

UKAS 3 point - instrument & probe (-18, 0, +70°C) *probe required for calibration

UKAS 3 point - instrument & probe (-18, 0, +70°C) *probe required for calibration

UKAS 5 Point Certificate - Instrument Only (-18, 0, +40, +70, +100°C)

UKAS 5 Point Certificate - Instrument Only (-18, 0, +40, +70, +100°C)

UKAS 5 point -instrument & probe (-18, 0, +40, +70, +100°C) *probe required for calibration

UKAS 5 point -instrument & probe (-18, 0, +40, +70, +100°C) *probe required for calibration


Add a probe

Add other accessories

Add probe wipes

Add cases, boots & holders

In stock
Product code: 221-041
Biomaster Protected Made in UK BRCGS

Therma 1 industrial digital thermometer features

The Therma 1 industrial digital thermometer features a wide temperature range of -100 to 1370 °C, making it ideal for a variety of harsh applications. The easy-to-read display shows the temperature with a 0.1 °C resolution. In addition, the thermometer's hold function makes recording temperatures simple.

Frequent battery changes are an inconvenience for busy professionals. Powered by three AAA batteries, the Therma 1 has a minimum of five years of battery life and features an auto power-off function to reduce battery usage.

The Therma 1 is supplied with a free certificate of calibration and a 2-year guarantee, so you can be confident in the accuracy and reliability of your readings.

Antimicrobial protection

The Therma 1 industrial thermometer's robust and lightweight casing includes Polygiene BioMaster product protection to reduce bacterial growth.

Compatible with a wide range of thermocouple probes

This industrial digital thermometer can be used with any of our type K thermocouple probes, enabling you to use the same instrument for multiple applications. Choose from surface probes for measuring pipes, air probes for reading the room temperature, and probes for many more daily safety checks.


Please note that the Therma 1 thermometer is supplied without a probe.

Click the Button to See Our Probe Guide

Adding a Protective Silicone Boot to your thermometer will protect it against damage and make it splashproof to IP64. Use our Stainless Steel Wall Bracket to keep your Therma 1 stored safely and in an accessible location.

The Therma 1 industrial thermometer is designed and built by hand at our factories in Worthing, West Sussex. Supplied with a two-year guarantee, you can be confident that your digital thermometer is built to last.

Product Details

Data sheet

Range 0.1°C:-99.9 to 299.9°C
Range 1°C:300 to 1372°C
Resolution:0.1 °C & 1 °C
Accuracy:±0.4 °C ±0.1% of reading
Battery:3 x 1.5 volt AAA
Battery Life:minimum 5 years (10000 hours)
Sensor Type:K thermocouple
Display: 12mm LCD
Dimensions:25 x 56 x 128mm
Weight:130 grams
Case Material: ABS plastic includes Biomaster product protection
Country of Manufacture: United Kingdom
Guarantee: two years
Water/Dust Resistance: IP64 when using 820-253 boot
Measurement Scale: Celsius/Fahrenheit
Certification: FREE traceable calibration certificate

Specific References

Reviews (18)
Thermometer Instructions

CaterTemp & Therma Series manual

Download (435.19KB)
221-041 C of C

221-041 Therma 1 certificate of conformity

Download (70.89KB)

Sign in


My Wishlist0

Your cart

There are no more items in your cart