Reference thermometer calibration thermometer


Reference thermometer calibration thermometer.

  • ±0.03 °C/°F high system accuracy
  • 5-point UKAS Calibration Certificate included
  • supplied complete with high accuracy probe
  • ideal for calibration comparison checks
  • meets the European Standard EN 13485
  • unavailable for next day delivery as certificated at time of order


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certificated at time of order

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£220.00 ex VAT

  £264.00 inc VAT

The Reference thermometers are high accuracy PT100 instruments that are supplied with a 5-point UKAS Certificate of Calibration. Each certificate indicates deviations from standards at various check points: -18, 0, 40, 70 and 100 °C. Special ranges may be certified by arrangement with the ETI UKAS calibration laboratory.

The Reference thermometers are ideal for comparison checking the calibration and accuracy of other thermometers and probes, when used in conjunction with a stable temperature heat or chill source. The instruments measure temperature over the range of -199.99 to 199.99 °C with a resolution of 0.01 °C and a system accuracy of ±0.03 °C (-49.99 to 149.99 °C) ±0.1 °C (-150 to 200 °C).

The units feature a simple on/off push button with open circuit 'Err' and low battery indication, when applicable. The Reference Plus thermometer incorporates the additional features of a max/min and hold function.

The Reference thermometers are supplied with a permanently attached, high accuracy probe incorporating a 1/10th DIN PT100 sensor. The probe measures Ø3.3 x 130 mm and is supplied with a one metre PVC lead.

Click here to find out more about how to validate readings from your infrared thermometer.


range:-199.99 to 199.99°C
accuracy:±0.03 °C (-49.99 to 149.99°C) ±0.1 °C (-150 to 200°C)
system accuracy:±0.03 °C (-49.99 to 149.99°C) ±0.1 °C (-150 to 200°C)
battery:3 x 1.5 volt AAA
battery life:2000 hours
sensor type:PT100 1/10th DIN
display: 10mm LCD
dimensions:25 x 56 x 128mm
weight:210 grams
case material: ABS plastic with Biomaster Antimicrobial technology
country of manufacture: United Kingdom
guarantee: two years
measurement scale: Celsius
certification: UKAS calibration certificate
conforms to standard:EN 13485

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:





Precision & Reference manual

User guide & manual for the PT100 Reference & Precision thermometers

Download (416.86k)

222-055 C of C

222-055 Reference certificate of conformity

Download (100.76k)

222-063 C of C

222-063 Reference Plus certificate of conformity

Download (103.6k)


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