Thermocouple, NTC & RTD Input Thermometers
Digital thermometers are the quickest and most accurate way to determine temperature. We stock a wide variety of different thermometer types including food thermometers, outdoor-use and multi-channel thermocouple instruments.
Find out more about Thermocouple, NTC & RTD Input Thermometers below.

- Simultaneously displays the actual, max, and min temperature
- Resolution of 1°C/°F or 0.1°C/°F (Max & Min)
- Large custom LCD

- White, red, or blue colours
- Reduced tip for quicker response
- Temperature range: -50 to 150 °C
- IP65 water-resistant

- Temperature range: -40°C to +150°C
- Supplied with a heavy-duty, ribbed, polypropylene handle
- Available with a colour-coded cap of your choice

- Works with optional type K temperature probes (single channel)
- High accuracy, professional digital thermometer ideal for industrial applications
- Temperature range from -100 to 1372°C

- Compatible with a wide range of optional type K thermocouple temperature probes
- High accuracy digital thermometer made for industrial applications
- Temperature range from -99.9°C to 1372°C

- Fast-response thermometer designed for use with type T thermocouple probes
- Measurement range from -100 to 400°C
- 2 year guarantee from ETI included

- Upgraded version of ETI's Therma 1 thermometer
- Accepts a wide variety of interchangeable type K probes (sold separately)
- High accuracy and reliable results

- High accuracy penetration temperature probe for use in catering
- Interchangeable thermistor temperature probe
- Meets European Standard EN13485

- Works with both type T thermocouple and thermistor temperature probes
- High accuracy, reliable temperature measurements
- Designed for use within the food/catering industry

- Robust, fully waterproof digital thermometer rated to IP66 and IP67
- Suitable for use with a wide variety of interchangeable type K temperature probes
- Temperature measurement range from -99.9 to 1372°C

- High precision digital thermometer with two input ports
- Works with a wide variety of type K temperature probes (sold separately)
- Waterproof design rated to IP66 and IP67

- UKAS Calibration Certificates
- Programmable high & low audible alarms
- European Standard EN 13485

- Upgraded version of the Therma 22 thermometer with waterproof case
- Universally suitable for use with thermistor/Type T thermocouple probes (sold separately)
- Ideal for measuring temperatures in food processing applications

- 2 point (-18, 0°C) UKAS Calibration Certificates
- Programmable high & low audible alarms
- Records the max/min temperature

- Special kit version of ETI's RayTemp 8 thermometer
- Includes thermometer, penetration probe, probe wipes and carrying case
- Great value!

- Exceptionally high accuracy of ±0.2°C
- Works with a wide variety of optional PT100 class A temperature probes (sold separately)
- Temperature measurement range from -199.9 to 499.9°C

- Temperature range: -99.9°C to +1372°C
- Durable, waterproof, aluminium casing
- Ideal for everyday catering and food processing applications

- Temperature range: -39.9°C to +149.9°C
- Large, easy-to-read LCD
- IP67-rated, robust extruded aluminium case with Biomaster Antimicrobial technology

- Connect to your iOS or Android device
- SDK & technical integration support available
- Two models to choose from

- Bluetooth wireless technology
- ±0.5 °C high system accuracy
- Free traceable calibration certificate
- 3,000-Hour Battery Life

- Special bundle version of the ETI Therma Differential thermometer
- Includes 2 x pipe clamp temperature probes + zip pouch
- High accuracy, reliable results

- Measure temperature from two points simultaneously
- Connect via Bluetooth to your smartphone/tablet and view results wirelessly
- Highly accurate with excellent resolution and exceptional battery life

- Bluetooth wireless technology
- Free traceable calibration certificate
- 3,000-Hour Battery Life

- View the temperature readings from four thermocouples simultaneously
- Range: -99.9°C to +1372°C
- Programmable high and low alarms for each channel
About Thermocouple, NTC & RTD Input Thermometers
Many thermometers originally had slightly inaccurate, analogue gauges that used mercury and other substances. These have been gradually phased out thanks to innovations in the field of digital temperature measurement.
Digital thermometers are significantly more accurate than older-style thermometers due to their ability to accurately display temperature in Celsius, Fahrenheit, and Kelvin as a digital reading. This is essential for those who need accurate temperature readings in challenging environments are for installations that rely on accurate set-up data.
Devices for measuring temperature generally come in many different forms, and although they all come under the category of digital thermometers they all are used for different kinds of temperature measurement.
We have a versatile range that features pocket-sized models and many, especially the data-loggers, with PC-interfacing ability. Some models are also capable of working in extreme temperatures, allowing accurate temperature readings in potentially hazardous environments. Supermarkets in particular will find great use in a data-logging thermometer with audible alarms, as these devices will provide a clear indication when freezers are not working at the correct temperature.