Therma 20 Metal Thermometer

221-700 ETI New

Therma 20 Metal Thermometer

  • extruded aluminium case for superior durability
  • FREE traceable certificate of calibration
  • Biomaster Antimicrobial Technology
  • large, easy to read LCD display
  • supplied excluding probe

Therma K Metal & CaterTemp Metal thermometers are also available

More details

in stock

£100.00 ex VAT

  £120.00 inc VAT

The Therma 20 Metal waterproof thermometer offers IP67 protection and is housed in a robust extruded aluminium case. The thermometer utilises state of the art electronic circuitry, designed for reliability and ease of use and can be submerged or washed under a running tap - ideal for food processing applications where cleaning is paramount.

The Therma 20 Metal thermometer measures temperature over the range of -39.9 °C to 149.9 °C with a 0.1 °C resolution. The instrument features a large, easy to read, LCD display. The unit also incorporates an auto-power off facility that automatically turns the instrument off after ten minutes, maximising battery life.

The instrument is housed in an ergonomic case with a white coated finish that contains Biomaster Antimicrobial Technology that reduces bacterial growth. The Therma 20 Metal incorporates an easy to use waterproof Lumberg screw-locking type connector, allowing a wide range of interchangeable thermistor probes to be used. The Therma 20 Metal is supplied exclusive of probe.

range - thermistor: -39.9 °C to 149.9 °C
resolution: 0.1 °C
accuracy - instrument only : ±0.2 ºC ±0.1 % of reading
system accuracy: ±0.4 °C (-24.9 to 109.9 °C) otherwise 1 °C
battery: 3 x 1.5 volt AAA
battery life: 10,000 hours @ 25 °C
sensor type: thermistor
display: 15 mm LCD
dimensions: 37 x 61.4 mm x 177 mm
weight: 242 grams
case material: ABS plastic with Biomaster Antimicrobial technology
certification: FREE traceable calibration certificate

Biomaster protection

Biomaster antimicrobial technology is incorporated in the majority of ETI products during the manufacturing process, reducing the risk of bacterial cross contamination. As well as being harmful to health, outbreaks of food poisoning can damage brands, and the reputation of stores, food producers and restaurants. This protection lasts for the useful lifetime of the product.

The risk of food-borne contamination is widespread, existing in restaurants, bars, hotels, supermarkets, hospitals, schools, aircraft, cruise ships and your home. Anywhere where food is made, prepared or eaten.

Biomaster treated products have been proven to reduce the growth of food borne bacteria such as E.Coli, Salmonella and Campylobacter by up to 99.99%, so by choosing an ETI product with Biomaster additive, your product is protected 24 hours a day, every day.

What is Biomaster?

Biomaster is the leading brand of Antimicrobial Technology providing safe, effective and long-lasting protection against the growth of harmful bacteria, making any surface cleaner and more hygienic for its entire lifetime.

Proven to quickly reduce bacteria by up to 99.99% Biomaster is an effective means of reducing the growth of MRSA, E.Coli, Salmonella Campylobacter and Legionella and over 50 other species.

Incorporated into the body material of your ETI product, Biomaster becomes an integral part of it, providing durable, lifelong protection against the threat of cross contamination. 

How does it work?

The active ingredient in Biomaster is silver. Silver has been used in its pure form for many centuries to prevent the growth of bacteria.

Incredibly durable, long lasting and highly active, when Biomaster is added during manufacture it is dispersed throughout the product casing, will not wash off and will last for its entire lifetime. Biomaster provides antimicrobial protection without allowing bacteria to develop resistance.


Biomaster has 3 different modes of action:





221-700 C of C

Therma 20 Metal Thermometer Certificate of Conformity

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221-700 Therma 20 Metal OpInst

Therma 20 Metal Thermometer Instructions

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