Digital Thermometers

A digital thermometer is a scientific instrument used to measure temperature. Digital thermometers use a probe to take the temperature and a numerical reading is clearly displayed on an LCD screen. They produce accurate readings and usually display the results in one decimal place. This makes them a popular choice as they tend to be more precise than liquid type thermometers.

RS Components offer an extensive range of high-quality digital instruments from leading brands including Fluke, Testo, Digitron, Hanna Instruments, Comark and of course RS PRO.

We also offer an excellent in-house calibration service if required. See here for more details about our calibration services

How does a digital thermometer work?

A digital thermometer uses internal sensors that produce resistance, voltage or current change when there is a change in temperature. There are 3 main types which are RTD, thermistor or thermocouple.

Digital thermometer types

Hand-Held thermometers are portable battery-operated devices with additional plugin probes. Probes can vary in type depending on the application. Popular probe types for handheld thermometers include insertion, surface or air probes.

Bench thermometers are used in laboratories and test stations. They are larger and more industrial than handheld units. Bench thermometers typically use thermocouple probes such as type K, J, N, R and T.

Panel and wall mount thermometers are permanently fixed. They are used for continuous and low maintenance applications.

Fridge and freezer thermometers are used to indicate the temperature in industrial and commercial fridges and freezers. Temperature regulation must be monitored and maintained as a rise in temperature readings could spoil goods

What are the applications for Digital Thermometers?

  • Food industry
  • Hygiene testing
  • Industrial maintenance
  • Heating & ventilation
  • Scientific research
  • Medical testing
  • General-purpose temperature monitoring

For more information please see our digital thermometers guide


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Description Price Absolute Maximum Temperature Measurement Calibrated Thermometer Type Probe Type Application Best Accuracy Communication Protocol Number of Temperature Inputs Resolution Data Storage Length Width Height Dimensions
RS Stock No. 198-5637
Mfr. Part No.KM330
BrandComark
£95.40
Each
Units
+1300°C - Wired K - ±0.2 % - 1 0.1 °C Yes - - - -
RS Stock No. 198-5867
Mfr. Part No.KM330
BrandComark
£151.40
Each
Units
+1300°C RSCAL Handheld K - ±0.2 % - 1 0.1 °C Yes - - - -
RS Stock No. 846-4708
Mfr. Part No.HI98509
£39.49
Each
Units
+150°C - Wired NTC Education, Food (Storage, Transportation, Manufacturing, Cooking), Laboratory ±0.3 K - 1 0.1 °C - 58mm 19mm 106mm -
RS Stock No. 911-9469
Mfr. Part No.HI98509 NEW
£154.49
Each
Units
+150°C UKAS Wired NTC Education, Food (Storage, Transportation, Manufacturing, Cooking), Laboratory ±0.3 (-20 → +90 °C) °C, ±0.5 (Out Side) °C - 1 0.1 °C - 58mm 19mm 106mm -
RS Stock No. 911-9465
Mfr. Part No.HI98509 NEW
£124.49
Each
Units
+150°C RSCAL Wired NTC Education, Food (Storage, Transportation, Manufacturing, Cooking), Laboratory ±0.3 (-20 → +90 °C) °C, ±0.5 (Out Side) °C - 1 0.1 °C - 58mm 19mm 106mm -
RS Stock No. 365-6268
Mfr. Part No.EMT 1900
BrandLascar
£29.95
Each
Units
+220°C - Wired NTC Laboratory ±1 °C - 1 0.5 °C - 44mm 21mm 5.5mm -
RS Stock No. 518-5190
Mfr. Part No.0560 9250
BrandTesto
£139.00
Each
Units
+1000°C RSCAL Wired K - ±0.5 °C - 1 0.1 °C - 177.8mm 63.5mm 40.6mm -
RS Stock No. 518-5207
Mfr. Part No.0560 9250
BrandTesto
£159.00
Each
Units
+1000°C UKAS Wired K - ±0.5 °C - 1 0.1 °C - 177.8mm 63.5mm 40.6mm -
RS Stock No. 333-868
Mfr. Part No.0560 9250
BrandTesto
£139.00
Each
Units
+1000°C SYSCAL Wireless K - ±0.5 °C - 1 0.1 °C - 177.8mm 63.5mm 40.6mm -
RS Stock No. 512-0288
Mfr. Part No.0560 9250
BrandTesto
£83.00
Each
Units
+1000°C - Wired K - ±0.5 K - 1 0.1 °C - 177.8mm 63.5mm 40.6mm -
RS Stock No. 358-8193
Mfr. Part No.1281142
BrandFluke
£305.00
Each
Units
+1372°C SYSCAL Wired E, J, K, T Industrial ±0.05 % - 1 0.1 °C - 173mm 86mm 38mm 173 x 86 x 38mm
RS Stock No. 358-8187
Mfr. Part No.1281142
BrandFluke
£310.00
Each
Units
+1372°C UKAS Wired E, J, K, T Industrial ±0.05 % - 1 0.1 °C - 173mm 86mm 38mm 173 x 86 x 38mm
RS Stock No. 353-4449
Mfr. Part No.FLUKE-51-2
BrandFluke
£293.00
Each
Units
+1372°C - Wired E, J, K, T Industrial ±0.3 K - 1 0.1 °C - 173mm 86mm 38mm -
RS Stock No. 358-8143
Mfr. Part No.1281142
BrandFluke
£290.00
Each
Units
+1372°C RSCAL Wired E, J, K, T Industrial ±0.05 % - 1 0.1 °C - 173mm 86mm 38mm 173 x 86 x 38mm
RS Stock No. 358-8216
Mfr. Part No.FLUKE-52-2
BrandFluke
£451.00
Each
Units
+1372°C SYSCAL Wired E, J, K, T Industrial ±0.05 % - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 358-8200
Mfr. Part No.FLUKE-52-2
BrandFluke
£471.00
Each
Units
+1372°C UKAS Wired E, J, K, T Industrial ±0.05 % - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 353-4455
Mfr. Part No.FLUKE-52-2
BrandFluke
£395.00
Each
Units
+1372°C - Wired E, J, K, T Industrial ±0.3 K - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 358-8159
Mfr. Part No.FLUKE-52-2
BrandFluke
£451.00
Each
Units
+1372°C RSCAL Wired E, J, K, T Industrial ±0.05 % - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 712-1110
Mfr. Part No.FM25
BrandDigitron
£42.17
Each
Units
+40°C - Wired PT100 Multipurpose - - 2 1 °C - - - - -
RS Stock No. 810-9152
Mfr. Part No.FLK-T3000 FC
BrandFluke
£224.00
Each
Units
+1372°C RSCAL Wired K Industrial ±0.5% + 0.3 °C - 1 0.1 °C - 165mm 63.5mm 35.6mm -