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. 123-3215
BrandRS PRO
R 1,505.73
Each
units
+1300 °C, +1999 °F - Handheld K - ±0.1 K - 1 0.1 °C, 0.2 °F No 74mm 39mm 170mm -
RS stock no. 846-4708
Mfr. Part No.HI98509
R 1,079.56
Each
units
+150°C - Wired NTC Cooking), Education, Food (Storage, Laboratory, Manufacturing, Transportation ±0.3 K - 1 0.1 °C - 58mm 19mm 106mm -
RS stock no. 365-6268
Mfr. Part No.EMT 1900
BrandLascar
R 646.98
Each
units
+220°C - Wired NTC Laboratory ±1 °C - 1 0.5 °C - 44mm 21mm 5.5mm -
RS stock no. 123-3216
BrandRS PRO
R 1,807.59
Each
units
+1300 °C, +1999 °F - Wired K - ±1 K - 2 0.1 °C, 0.2 °F No 74mm 39mm 170mm -
RS stock no. 410-7795
Mfr. Part No.HI147-00
R 1,555.43
Each
units
+150°C - Wired - Kitchen Appliance ±0.3 °C - 1 0.1 °C - 93mm 39mm 31mm -
RS stock no. 353-4449
Mfr. Part No.FLUKE-51-2
BrandFluke
R 7,390.00
Each
units
+1372°C - Wired E, J, K, T Industrial ±0.3 K - 1 0.1 °C - 173mm 86mm 38mm -
RS stock no. 712-1110
Mfr. Part No.FM25
BrandDigitron
R 955.26
Each
units
+40°C - Wired PT100 Multipurpose - - 2 1 °C - - - - -
RS stock no. 465-9218
BrandRS PRO
R 449.02
Each
units
+200°C - Wired - Multipurpose ±1 °C - 1 1 °C - 290mm 40mm 27mm -
RS stock no. 913-2597
Mfr. Part No.0560 1905
BrandTesto
R 1,278.88
Each
units
- - Wired - Smartphone, Tablet ±1 °C - - - - - - - -
RS stock no. 736-1507
Mfr. Part No.FLUKE-53-2 B
BrandFluke
R 9,475.26
Each
units
+1767°C - Wired E, J, K, N, R, S, T Industrial ±0.05 % - 1 0.1 °C Yes 173mm 86mm 38mm -
RS stock no. 512-0266
Mfr. Part No.0560 7207
BrandTesto
R 2,843.88
Each
units
+800°C - Wired NTC, PT100 Industrial, Laboratory ±0.2 °C - 1 0.1 °C Yes 182mm 64mm 40mm -
RS stock no. 620-9758
Mfr. Part No.0563 1063
BrandTesto
R 976.13
Each
units
+275°C - Wired - Food Industry, Multipurpose ±0.5 °C - 1 0.1 °C - 215mm 34mm 19mm -
RS stock no. 846-4705
Mfr. Part No.HI98501
R 930.72
Each
units
+150°C - Wired - Cooking), Education, Food (Storage, Laboratory, Manufacturing, Transportation ±0.3 K - 1 0.1 °C - 50mm 25mm 66mm -
RS stock no. 509-0907
Mfr. Part No.TL 310
BrandEliwell
R 749.34
Each
units
+70°C - Wired - Industrial ±0.5% - 1 1 °C - 62mm 30mm 19mm -
RS stock no. 700-6412
Mfr. Part No.231-207
R 1,170.83
Each
units
+299.9°C - Wired K Food Industry ±0.4 °C - 1 0.1 °C - 157mm 47mm 19mm -
RS stock no. 509-0890
Mfr. Part No.TL 300
BrandEliwell
R 742.86
Each
units
+70°C - Wired - Industrial ±1 °C - 1 0.1 °C - 48mm 28.6mm 13.5mm -
RS stock no. 493-471
Mfr. Part No.C20
BrandComark
R 1,877.26
Each
units
125°C - Wireless Thermistor Food Industry, Multipurpose ±0.5 °C - 1 0.1 °C - 152mm 58mm 22mm -
RS stock no. 699-7294
Mfr. Part No.0560 1109
BrandTesto
R 503.15
Each
units
+300°C - Wired NTC Multipurpose ±1 °C - 1 0.1 °C - - - - -
RS stock no. 736-1501
Mfr. Part No.3621081
BrandFluke
R 11,453.26
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. 512-0288
Mfr. Part No.0560 9250
BrandTesto
R 1,709.42
Each
units
+1000°C - Wired K - ±0.5 K - 1 0.1 °C - 177.8mm 63.5mm 40.6mm -