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. 123-2280
BrandRS PRO
£224.43
Each
Units
+1090 (J) °C, +1300 (N) °C, +1370 (K) °C, +1598 (E) °F, +1767 (R) °C, +1767 (S) °C, +1994 (J) °F, +1999.9 (K) °F, +1999.9 (N) °F, +1999.9 (R) °F, +1999.9 (S) °F, +400 (T) °C, +752 (T) °F, +870 (E) °C UKAS Wired E, J, K, N, R, S, T - ± 0.05 % + 2 (S) °C, ±0.05 % + 0.5 (E) °C, ±0.05 % + 0.5 (J) °C, ±0.05 % + 0.5 (K) °C, ±0.05 % + 0.5 (N) °C, ±0.05 % + 0.5 (T) °C, ±0.05 % + 0.9 (E) °F, ±0.05 % + 0.9 (J) °F, ±0.05 % + 0.9 (K) °F, ±0.05 % + 0.9 (N) °F, ±0.05 % + 0.9 (T) °F, ±0.05 % + 2 (R) °C, ±0.05 % + 4 (R) °F, ±0.05 % + 4 (S) °F - 2 0.1 (E) °F, 0.1 (E) °C, 0.1 (E) K, 0.1 (J) °C, 0.1 (J) K, 0.1 (J) °F, 0.1 (K) K, 0.1 (K) °C, 0.1 (K) °F, 0.1 (N) °F, 0.1 (N) K, 0.1 (N) °C, 0.1 (T) °F, 0.1 (T) °C, 0.1 (T) K, 1 (R) °F, 1 (R) °C, 1 (R) K, 1 (S) °F, 1 (S) °C, 1 (S) K Yes 72mm 35mm 150mm -
RS Stock No. 204-8413
BrandRS PRO
£99.00
Each
Units
1372°C - Wired K, T Environmental ±0.2 °C (±0.1%) - 1 0.1°→1000° No 130mm 70mm 33mm -
RS Stock No. 204-8409
BrandRS PRO
£121.88
Each
Units
850°C - Wired PT100 Food Industry, Industrial ± 0.05 % - 1 0.1°→1000° No 130mm 70mm 33mm -
New
RS Stock No. 205-0970
BrandRS PRO
£173.32
Each
Units
+250°C - Wired - - - - 1 - - - - - -
RS Stock No. 204-8415
BrandRS PRO
£115.00
Each
Units
1372°C - Wired E, J, K, N, R, S, T HVAC, Industrial ±0.2 °C (±0.1%) - 1 0.1°→1000° No 130mm 70mm 33mm -
RS Stock No. 205-0960
BrandRS PRO
£94.36
Each
Units
+250°C - Wired T HVAC, Industrial -20 °C→+100 °C: ±0.1 K ±1 digit
-70 °C→ +250 °C: ±0.2 % of m. v. ±2 digit
- 1 0.1 °C No 54mm 28mm 108mm -
RS Stock No. 204-8410
BrandRS PRO
£121.88
Each
Units
1372°C - Wired E, J, K, N, R, S, T HVAC, Industrial ±0.2 °C (±0.1%) - 1 0.1°→1000° No 130mm 70mm 33mm -
New
RS Stock No. 205-0971
BrandRS PRO
£201.32
Each
Units
+250°C UKAS Wired PT100 General Purpose "-20→+100 °C: ±0.1 K ±1 digit
-70→+250 °C: ±0.2 % of mv ±2 digit"
- 1 0.1 °C No 54mm 28mm 108mm -
RS Stock No. 136-5671
BrandRS PRO
£27.75
Each
Units
+200 °C, +392 °F - Wired - - ±2 °C, ±4 °F - 1 0.1 ° - - - - -
RS Stock No. 204-8416
BrandRS PRO
£99.00
Each
Units
150°C - Wired NTC Food Industry, Medical ±0.2 °C - 1 0.1° No 130mm 70mm 33mm -
RS Stock No. 204-8412
BrandRS PRO
£390.63
Each
Units
1820°C - Wired E, J, K, N, R, S, T HVAC, Industrial ±0.2 °C (±0.1%) - 1 0.1°→1000° Yes 130mm 70mm 33mm -
New
RS Stock No. 205-0973
BrandRS PRO
£205.36
Each
Units
+250°C UKAS Wired T HVAC, Industrial "-20 °C→+100 °C: ±0.1 K ±1 digit
-70 °C→ +250 °C: ±0.2 % of m. v. ±2 digit"
- 1 0.1 °C No 54mm 28mm 108mm -
RS Stock No. 205-0959
BrandRS PRO
£90.32
Each
Units
+250°C - Wired PT1000 General Purpose -20→+100 °C: ±0.1 K ±1 digit
-70→+250 °C: ±0.2 % of mv ±2 digit
- 1 0.1 °C No 54mm 28mm 108mm -
RS Stock No. 136-5740
BrandRS PRO
£112.75
Each
Units
+200 °C, +392 °F RSCAL Wired - - ±2 °C, ±4 °F - 1 0.1 ° - - - - -
RS Stock No. 196-8735
BrandRS PRO
£9.00
Each
Units
- - Wired - Multipurpose - - - - - - - - -
RS Stock No. 204-8411
BrandRS PRO
£498.00
Each
Units
1820°C - Wired E, J, K, N, R, S, T HVAC, Industrial ±0.2 °C (±0.1%) - 1 0.1°→1000° Yes 130mm 70mm 33mm -
New
RS Stock No. 205-0972
BrandRS PRO
£177.36
Each
Units
+250°C - Wired - - - - 1 - - - - - -
RS Stock No. 204-8417
BrandRS PRO
£296.88
Each
Units
1372°C - Wired E, J, K, N, R, S, T HVAC, Industrial ±0.2 °C (±0.1%) - 2 0.1°→1000° No 130mm 70mm 33mm -
RS Stock No. 198-7762
Mfr. Part No.KM330
BrandComark
£151.40
Each
Units
+1300°C SYSCAL Wired K - ±0.2 % - 1 0.1 °C Yes - - - -
RS Stock No. 198-5845
Mfr. Part No.KM330
BrandComark
£171.40
Each
Units
+1300°C UKAS Wired K - ±0.2 % - 1 0.1 °C Yes - - - -