Thermometers

Eliwell Digital LCD Thermometer Battery Powered

£20.57 £17.14
Mastercool 52225-A Dual Temp Infrared Thermometer for HVAC 30:1

£154.54 £128.78
Mastercool Pocket Thermometer Analogue -10 to 100 C

£5.06 £4.22
Mastercool 52224-A Infrared Thermometer with Laser -50 to 500°C

£90.59 £75.49
Mastercool Dual Temperature Thermometer Infra Red Contact

£58.62 £48.85
Mastercool 52227 Pocket Infrared Thermometer -58°F to 428°F HVAC Tool

£44.76 £37.30
Mastercool 52228 Digital Differential Thermometer for HVAC UK

£138.55 £115.46
Mastercool Handheld Waterproof Digital Thermometer with Probe

£41.46 £34.55
Mastercool K Type Piercing Penetration Temperature Probe

£72.47 £60.39
Mastercool K Type Air Temperature Probe

£78.85 £65.71

Accurate temperature control with professional aircon thermometers

Looking for perfect climate control and reliable system performance? Our HVAC thermometers help engineers diagnose, commission, and maintain air conditioning and refrigeration systems with confidence.

Choose from digital contact thermometers, infrared spot testers, and dual-input models – all built for professional use and fast, accurate results.

Optimising aircon systems with Mastercool thermometers

Temperature readings are fundamental to HVAC diagnosis, system commissioning and performance verification. Inaccurate measurements lead to misdiagnosis, improper charging and system inefficiency – costing time, money and professional reputation.

Mastercool thermometers provide the precision needed to:

Accurately measure superheat and subcooling for proper refrigerant charging
Diagnose system performance issues with reliable temperature differentials
Verify system efficiency through precise inlet/outlet temperature monitoring
Complete professional commissioning that meets manufacturer specifications

Choosing the right aircon thermometer

From airflow checks to pipe temperature monitoring, our extensive range of Mastercool thermometers has you covered:

Infrared thermometers with laser targeting for safe, accurate readings – great for non-contact measurements
Waterproof digital thermometers like this handheld Mastercool unit for contact measurement
Differential thermometers that deliver dual temperature measurement for superheat and subcooling calculation
Analogue thermometers if you’re looking for a reliable Mastercool pocket thermometer for quick temperature checks

Plus we stock all essential HVAC diagnostic tools, including manifolds and hoses, vacuum pumps and leak detection equipment for complete system servicing.

Order today for delivery tomorrow

With next-day delivery available across our huge, in-stock selection of aircon spares, you can quickly get the thermometer you need to keep your aircon systems operating at peak efficiency.