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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 offers 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](https://uk.rs-online.com/web/generalDisplay.html?id=our-services/calibration)

### 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. The digital display shows the temperature reading in a clear and precise format, making it easy for users to interpret the results.

### 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](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/digital-thermometers-guide).

Digital Thermometers can help support a healthy building by improving Thermal Health



Shop our range of Digital Thermometers supplies & accessories. Free Next Day Delivery. Browse our latest Digital Thermometers offers.

Digital Thermometers | Digital Display | RS

Digital Thermometers

Buy Hand Held Thermometers. Browse our latest Hand Held Thermometers offers. Free Next Day Delivery.

Hand Held Thermometers | RS

Buy Thermocouple Thermometers. Browse our latest Thermocouple Thermometers offers. Free Next Day Delivery.

Thermocouple Thermometers | RS

Buy our range of digital thermometers probe. Browse our latest digital thermometers offers. Don't miss out on our latest deals!

Digital Thermometers Probe | RS

Buy from our selection of digital thermometers from Arnoux. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Arnoux Digital Thermometers | RS Components

Buy from our selection of digital thermometers from Comark. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Comark Digital Thermometers | RS Components

Shop our range of RS PRO Digital Thermometers. Next Day Delivery Availble. 

RS PRO Digital Thermometers | Digital Display | RS

Buy from our selection of Digital Thermometers from Digitron. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Digitron Digital Thermometers | RS

Buy Wireless Thermometers. Browse our latest Wireless Thermometers offers. Free Next Day Delivery.

Wireless Thermometers | RS

<p>Wireless thermometers allow you to keep up to date on temperatures outside and inside, with no for it to be plugged into a power source. Battery powered wireless thermometers can not only monitor the temperature, but it can be coupled with a data logger to record results for analysis on a computer.</p><p>Wireless thermometers can measure both Fahrenheit and Celsius depending on your preference, with some digital wireless thermometers capable of recording temperatures of 1800 degrees Celsius. Most thermometers have a minimum and maximum range of temperatures that it can monitor, so it’s important to tailor the right wireless thermometer to your requirements. </p><h2>Types of Wireless Thermometers</h2><ul><li><strong>Probe</strong> - Wireless thermometers can feature a probe which is usually metal that can be inserted to a material to sustain the temperature at the core. An example probed wireless thermometers are used is in the food industry to understand if food is cooked or thawed out.</li><li><strong>Digital Display</strong> - Digitally displayed wireless thermometers feature a sensor to measure the temperatures in the environment. The screen can display both temperature units, making it easy to read and monitor. This wireless digital thermometer is great for maintenance on refrigeration or air conditioning units.</li></ul>

Buy Testo Digital Thermometers. Browse out latest Testo Digital Thermometer offers. Free Next Day Delivery. 

Testo Digital Thermometers | RS

<p>If you're looking to purchase a digital Thermometer with fast and accurate temperature readings, then Testo have got you covered! Testo has a wide range of Digital Thermometers with multiple different probes available to cater for your every need, including the popular 925 series. </p><h2>How do Testo Digital Thermometers work? </h2><p>Testo Digital Thermometers work by using sensors that determine the temperature by producing a resistance, voltage, or current change. This is then displayed on the easy to read LCD display screen. The main types of Thermometers are RTD, Thermistor and Thermocouple. </p><h3>Different types of Probes & what they do </h3><p>Testo Digital Thermometers include a variety of probes to use for all applications. Whether that be for use in the food industry, for industrial use or even for use in the laboratory, Testo has a Digital Thermometer for you. </p><ul><li>Penetration Probes are used to check internal temperatures of items. These are usually used within the food industry as they can be inserted into food for health and safety measures. </li><li>Immersion Probes are similar to penetration probes but are generally used to gauge the temperature in liquids. This makes them ideal for use within laboratories and catering.  </li><li>Surface Probes are used to measure the temperature of a surface.</li><li>Air temperature probes are used to measure an environments temperature with a short response time. </li><li>K Probes are made up of nickel and chromium or nickel and aluminium and can have a temperature range of up to +1000°C and are non-corrosive. </li><li>NTC Probes known as Negative Temperature Coefficient probes measure by reducing resistance as the temperature increases.</li></ul><h4>Where might you use Testo Digital Thermometers? </h4><ul><li>Industrial maintenance </li><li>HVAC use / refrigeration and air conditioning applications </li><li>Food industry</li><li>Laboratory</li><li>Scientific research </li><li>Medical testing </li><li>General purpose temperature monitoring</li></ul>

Buy Fluke Digital Thermometers. Browse our latest Digital Thermometers offers. Free Next Day Delivery.

Fluke Digital Thermometer | RS

<p>Fluke is an internationally renowned brand in the field of process instrument design and manufacture, and especially well regarded for its line of high-end temperature measurement devices.</p><p>We're pleased to stock an advanced range of Fluke digital thermometers for a wide range of industrial and field uses, many of which are ATEX hazardous area certified. These robust, durable and highly accurate temperature measurement tools can easily stand up to the rigours of tough site work while continuing to deliver accurate results year after year.</p><h2>Why choose Fluke thermometers?</h2><p>Fluke measurement devices are built to exacting specifications using class-leading materials and components, giving you the precision you need to get the job done accurately and within budget. In particular, the company's advanced line of contact and digital thermometers are among the most widely used and trusted in the world.</p><p>The Fluke brand has picked up numerous key industry awards for design, practicality, quality and innovation over the years, both in its native USA and worldwide - recent accolades include:</p><ul><li>2019 Engineers' Choice Award</li><li>Multiple Plant Engineering Product of the Year prizes</li><li>A string of recommendations from leading industry review publications and websites (ProTool Reviews, Processing Magazine, Geek Wrapped and many more)</li></ul><p>The brand's impressive catalogue of dependable digital temperature measurement equipment is found today across a broad spectrum of industries and applications, including in many crucial day-to-day measurement, analysis, testing, maintenance and troubleshooting roles, and its products have earned an established reputation for portability, ruggedness, safety, ease of use, and rigid standards of quality.</p>

RS PRO Digital Thermometers

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