HVAC, Environmental & Industrial Thermometers

Testo Mini Surface Thermometer
Testo Mini Surface Thermometer
£26.35
£31.62 inc. vat
  • Long-length probe with flat tip for surface temperature measurements
  • Useful for HVAC technicians and for food and pharmaceutical use
  • Temperature measurement range from -50 to 300°C
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Testo 830-T1 Infrared Thermometer
In Stock : Get It Next Working Day*
Testo 830-T1 Infrared Thermometer
£50.15
£60.18 inc. vat
  • 10:1 distance to spot ratio
  • Wide temperature measurement range
  • Single laser pointer
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Testo 830-T2 Infrared Thermometer
In Stock : Get It Next Working Day*
Testo 830-T2 Infrared Thermometer
£55.25
£66.30 inc. vat
  • Infrared and probe measurements possible
  • 2 point laser for pinpoint measurements
  • Audible/visual alarms when customisable limits are exceeded
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Testo 115i Clamp Thermometer Smart Probe
In Stock : Get It Next Working Day*
Testo 115i Clamp Thermometer Smart Probe
£63.75
£76.50 inc. vat
  • Temperature range: -40°C to +150°C
  • Logs data to a smartphone or tablet
  • Bluetooth range: 100m
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Testo 915i Thermometer Smart Probe - Choice of Probe Heads
Testo 915i Thermometer Smart Probe - Choice of Probe Heads
£67.15
£80.58 inc. vat
  • Range of Testo Class 1 plug-in probe heads available
  • Bluetooth range: 100m
  • Innovative locking mechanism in the handle
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Testo 810 Infrared/Air Temperature Thermometer
In Stock : Get It Next Working Day*
Testo 810 Infrared/Air Temperature Thermometer
£72.25
£86.70 inc. vat
  • Infrared temperature measurements
  • Measures both surface and air temperature
  • Laser spot marking
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Testo 925 Single Channel Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 925 Single Channel Thermometer
£83.42
£100.10 inc. vat
  • Single channel temperature input
  • Continuously displays MAX/MIN values
  • Compact design
  • Testo Smart App connection
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Testo 830-T4 Infrared Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 830-T4 Infrared Thermometer
£84.15
£100.98 inc. vat
  • Infrared surface temperature measurements
  • Type K surface probe temperature measurements
  • 2 point laser and 30:1 lens
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Testo 905-T2 Compact Surface Thermometer
In Stock : Get It Next Working Day*
Testo 905-T2 Compact Surface Thermometer
£84.15
£100.98 inc. vat
  • Measurement range of -50 to 350°C
  • Elongated probe for easy measurements
  • Integrated sprung thermocouple designed to adapt to different surface types
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Testo 805i Bluetooth Infrared Thermometer Smart Probe / Data Logger
In Stock : Get It Next Working Day*
Testo 805i Bluetooth Infrared Thermometer Smart Probe / Data Logger
£84.15
£100.98 inc. vat
  • Masure surface temperature without direct contact
  • Wireless interface
  • Create professional reports, documentation & graphs
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Testo 110 1-Channel NTC Digital Thermometer
Testo 110 1-Channel NTC Digital Thermometer
£101.15
£121.38 inc. vat
  • Suitable for use outside and in refrigerated buildings and rooms
  • Programmable upper and lower limits with an audible alarm
  • Testo Smart App connection
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Testo 922 Dual Channel Digital Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 922 Dual Channel Digital Thermometer
£114.75
£137.70 inc. vat
  • Two-probe connections
  • Large measurement range
  • Printable test data
  • Testo Smart App connection
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Testo Smart Probes Mould Kit
In Stock : Get It Next Working Day*
Testo Smart Probes Mould Kit
£174.25
£209.10 inc. vat
  • Identify areas that are susceptible to mould
  • Data logging Smart Probes send measurements wirelessly via Bluetooth to the Testo Smart Probe App
  • Measure ambient temperature, relative humidity and surface temperature
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Testo 835-T1 4 Point Infrared Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 835-T1 4 Point Infrared Thermometer
£187.00
£224.40 inc. vat
  • Four spot laser pointer enables precise measurements
  • Large measurement range
  • Focused optics
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Testo Smart Probes Differential Temperature and Pressure Kit
Stock Due : Estimated 1-2 Weeks
Testo Smart Probes Differential Temperature and Pressure Kit
£220.15
£264.18 inc. vat
  • Optimised for heating engineers
  • Measure gas flow, static pressure, and flow and return temperature
  • Designed for use with the Testo Smart Probe App
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Testo Smart Probes Heating Kit
In Stock : Get It Next Working Day*
Testo Smart Probes Heating Kit
£225.25
£270.30 inc. vat
  • Optimised for heating engineers
  • Includes Testo’s 115i, 510i and 805i Smart Probes and a Heating Set Smart Case
  • Perform non-contact, flow and return temperature measurements and gas flow pressure readings
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Testo 835-H1 Infared Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 835-H1 Infared Thermometer
£314.50
£377.40 inc. vat
  • Measures both temperature and moisture
  • Laser pointer for precise measurements
  • 50:1 long distance optics
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Testo 735-1 - Multi-Channel Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 735-1 - Multi-Channel Thermometer
£334.05
£400.86 inc. vat
  • Compatible with different probes
  • High accuracy thermometer
  • Dual-probe input
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Testo Smart Probe VAC Kit
Testo Smart Probe VAC Kit
£339.15
£406.98 inc. vat
  • Optimised for air-conditioning engineers
  • Measure air and surface temperatures, humidity, air velocity and volume flow
  • Use with a smartphone or tablet and the Testo Smart Probe App
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Testo 835-T2 Infrared Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 835-T2 Infrared Thermometer
£373.15
£447.78 inc. vat
  • Infrared and probe measurements
  • Wide measurement range
  • Four-point laser
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Testo 735-2 Multi-Channel Thermometer
Stock Due : Estimated 1-2 Weeks
Testo 735-2 Multi-Channel Thermometer
£453.05
£543.66 inc. vat
  • Multi-channel temperature measurements
  • 10000 record internal storage
  • Download test data to PC
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Testo Smart Probes HVAC/ R Ultimate Kit
In Stock : Get It Next Working Day*
Testo Smart Probes HVAC/ R Ultimate Kit
£743.75
£892.50 inc. vat
  • Take temperature, pressure, humidity, and flow velocity readings
  • Ideal for servicing, installing, and troubleshooting HVAC/R equipment
  • View data, alter parameters, and create reports via the Testo Smart App
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About HVAC, Environmental & Industrial Thermometers

Industrial thermometers are notably more stable than regular thermometers. They are extremely accurate and have a considerable lifespan. This is because they don't have any mechanically moving parts, which means no material fatigue and no consumption of electrical energy.

An industrial thermometer is filled with liquid. The higher the measured temperature, the more this liquid inside expands. The expanding liquid climbs inside the tube and delivers the temperature to a display next to the tube.

Industrial thermometers come in different shapes and forms. One of the things in which they differ is the angle at which the immersion tube is attached to the thermometer itself. For different situations, different angles of attachment may be necessary.