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. 446-1803
Mfr. Part No.HI-147-00
£128.00
Each
Units
+150°C RSCAL Freezer, Fridge - Kitchen Appliance ±0.3 °C - 1 0.1 °C - 93mm 39mm 31mm 93 x 39 x 31mm
RS Stock No. 735-4913
Mfr. Part No.3621081
BrandFluke
£583.00
Each
Units
+1767°C RSCAL Wired E, J, K, N, R, S, T Industrial ±0.05 % - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 735-4919
Mfr. Part No.3621081
BrandFluke
£603.00
Each
Units
+1767°C UKAS Wired E, J, K, N, R, S, T Industrial ±0.05 % - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 736-1501
Mfr. Part No.3621081
BrandFluke
£527.00
Each
Units
+1767°C - Wired E, J, K, N, R, S, T Industrial ±0.3 K - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 735-4922
Mfr. Part No.3621081
BrandFluke
£583.00
Each
Units
+1767°C SYSCAL Wired E, J, K, N, R, S, T Industrial ±0.05 % - 2 0.1 °C Yes 173mm 86mm 38mm -
RS Stock No. 106-688
Mfr. Part No.2106T7
BrandDigitron
£219.36
Each
Units
+400°C UKAS Wireless T Food Industry ±0.2 °C - 1 0.1 °C - 155mm 67mm 40mm -
RS Stock No. 106-672
Mfr. Part No.2106T7
BrandDigitron
£199.36
Each
Units
+400°C RSCAL Wireless T Food Industry ±0.2 °C - 1 0.1 °C - 155mm 67mm 40mm -
RS Stock No. 101-453
Mfr. Part No.2106T7
BrandDigitron
£143.36
Each
Units
+400°C - Wireless T Food Industry ±0.2 °C - 1 0.1 °C - 155mm 67mm 40mm -
RS Stock No. 509-3675
Mfr. Part No.HI-151-00
£70.00
Each
Units
+220°C - Wired - Food Industry ±0.3 °C - 1 0.1 °C - 165mm 50mm 20mm -
RS Stock No. 512-6646
Mfr. Part No.HI-151-00
£153.00
Each
Units
+220°C RSCAL Wired - Food Industry ±0.3 °C - 1 0.1 °C - 165mm 50mm 20mm -
RS Stock No. 202-0884
Mfr. Part No.HI-151-00
£181.00
Each
Units
- UKAS Wired - Food Industry ±0.3 °C - 1 0.1 °C - 165mm 50mm 20mm 165 x 50 x 20mm
RS Stock No. 315-5232
Mfr. Part No.2006T
BrandDigitron
£187.32
Each
Units
+400°C RSCAL Wired T Multipurpose ±0.2 °C - 1 0.1 °C Yes 155mm 67mm 40mm -
RS Stock No. 315-5333
Mfr. Part No.2006T
BrandDigitron
£187.32
Each
Units
+400°C SYSCAL Wired T Multipurpose ±0.2 °C - 1 0.1 °C Yes 155mm 67mm 40mm -
RS Stock No. 315-5311
Mfr. Part No.2006T
BrandDigitron
£207.32
Each
Units
+400°C UKAS Handheld T Multipurpose ±0.2 °C - 1 0.1 °C Yes 155mm 67mm 40mm 155 x 67 x 40mm
RS Stock No. 311-1658
Mfr. Part No.2006T
BrandDigitron
£131.32
Each
Units
+400°C - Handheld T Multipurpose ±0.2 °C - 1 0.1 °C Yes 155mm 67mm 40mm 155 x 67 x 40mm
RS Stock No. 512-0272
Mfr. Part No.0560 9221
BrandTesto
£115.00
Each
Units
+1000°C - Handheld K HVAC ±0.7 °C - 2 0.1 °C - 182mm 64mm 40mm 182 x 64 x 40mm
RS Stock No. 518-5257
Mfr. Part No.0560 9221
BrandTesto
£171.00
Each
Units
+1000°C RSCAL Wired K HVAC ±0.7 °C - 2 0.1 °C - 182mm 64mm 40mm -
RS Stock No. 518-5263
Mfr. Part No.0560 9221
BrandTesto
£191.00
Each
Units
+1000°C UKAS Wired K HVAC ±0.7 °C - 2 0.1 °C - 182mm 64mm 40mm -
RS Stock No. 333-880
Mfr. Part No.0560 9221
BrandTesto
£171.00
Each
Units
+1000°C SYSCAL Wireless K HVAC ±0.7 °C - 2 0.1 °C - 182mm 64mm 40mm -
RS Stock No. 891-9167
Mfr. Part No.0563 2750
BrandTesto
£348.00
Each
Units
+200°C - Wired - Kitchen Appliance ±1.5 °C - 1 0.1 °C - 50mm 170mm 300mm -