HVAC, Environmental & Industrial Thermometers

  1. Testo Mini Surface Thermometer
    Testo logo
    Lead Time: 1-6 Days
    Testo Mini Surface Thermometer
    (1)
    £30.60 £25.50
    • 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
    25 Reward Points
    Price Match Guarantee
    5601109
  2. Testo 830-T1 Infrared Thermometer
    Testo logo
    3 In Stock
    Testo 830-T1 Infrared Thermometer
    (no reviews)
    £57.12 £47.60
    • 10:1 distance to spot ratio
    • Wide temperature measurement range
    • Single laser pointer
    47 Reward Points
    Price Match Guarantee
    5608311
  3. Testo 830-T2 Infrared Thermometer
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    Only 1 In Stock
    Testo 830-T2 Infrared Thermometer
    (1)
    £63.24 £52.70
    • Infrared and probe measurements possible
    • 2 point laser for pinpoint measurements
    • Audible/visual alarms when customisable limits are exceeded
    52 Reward Points
    Price Match Guarantee
    5608312
  4. Testo 115i Clamp Thermometer Smart Probe
    Testo logo
    In Stock
    Testo 115i Clamp Thermometer Smart Probe
    (no reviews)
    £70.38 £58.65
    • Temperature range: -40°C to +150°C
    • Logs data to a smartphone or tablet
    • Bluetooth range: 100m
    58 Reward Points
    Price Match Guarantee
    0560211502
  5. Testo 915i Thermometer Smart Probe - Choice of Probe Heads
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    3 Options in Stock
    Testo 915i Thermometer Smart Probe - Choice of Probe Heads
    (no reviews)
    £80.58 £67.15
    • Range of Testo Class 1 plug-in probe heads available
    • Bluetooth range: 100m
    • Innovative locking mechanism in the handle
    67 Reward Points
    Price Match Guarantee
    Testo 915i
  6. Testo 810 Infrared/Air Temperature Thermometer
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    3 In Stock
    Testo 810 Infrared/Air Temperature Thermometer
    (no reviews)
    £83.64 £69.70
    • Infrared temperature measurements
    • Measures both surface and air temperature
    • Laser spot marking
    69 Reward Points
    Price Match Guarantee
    05600810
  7. Testo 805i Bluetooth Infrared Thermometer Smart Probe / Data Logger
    Testo logo
    2 In Stock
    Testo 805i Bluetooth Infrared Thermometer Smart Probe / Data Logger
    (no reviews)
    £93.84 £78.20
    • Infrared thermometer - measure surface temperature without direct contact
    • Wirelessly interfaces with a smartphone/tablet using Bluetooth to log data
    • Create professional reports, capture images, view graphs and more with Testo's free Smart Probe app
    78 Reward Points
    Price Match Guarantee
    05601805
  8. Testo 830-T4 Infrared Thermometer
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    Lead Time: 1-2 Weeks
    Testo 830-T4 Infrared Thermometer
    (no reviews)
    £97.92 £81.60
    • Infrared surface temperature measurements
    • Type K surface probe temperature measurements
    • 2 point laser and 30:1 lens
    81 Reward Points
    Price Match Guarantee
    5608314
  9. Testo 905-T2 Compact Surface Thermometer
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    Only 1 In Stock
    Testo 905-T2 Compact Surface Thermometer
    (no reviews)
    £97.92 £81.60
    • Measurement range of -50 to 350°C
    • Elongated probe for easy measurements
    • Integrated sprung thermocouple designed to adapt to different surface types
    81 Reward Points
    Price Match Guarantee
    5609056
  10. Testo 925 Single Channel Thermometer
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    Only 1 In Stock
    Testo 925 Single Channel Thermometer
    (no reviews)
    £102.00 £85.00
    • Single channel temperature input
    • Continuously displays MAX/MIN values
    • Compact design
    • Testo Smart App connection
    85 Reward Points
    Price Match Guarantee
    05630925
  11. Testo 110 1-Channel NTC Digital Thermometer
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    Lead Time: 1-6 Days
    Testo 110 1-Channel NTC Digital Thermometer
    (no reviews)
    £127.20 £106.00
    • Suitable for use outside and in refrigerated buildings and rooms
    • Programmable upper and lower limits with an audible alarm
    • Testo Smart App connection
    106 Reward Points
    Price Match Guarantee
    05630110
  12. Testo 922 Dual Channel Digital Thermometer
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    Lead Time: 1-2 Weeks
    Testo 922 Dual Channel Digital Thermometer
    (no reviews)
    £138.00 £115.00
    • Two-probe connections
    • Large measurement range
    • Printable test data
    • Testo Smart App connection
    115 Reward Points
    Price Match Guarantee
    05630922
  13. Testo Smart Probes Mould Kit
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    Lead Time: 1-2 Weeks
    Testo Smart Probes Mould Kit
    (no reviews)
    £212.40 £177.00
    • 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
    177 Reward Points
    Price Match Guarantee
    0563000510
  14. Testo 835-T1 4 Point Infrared Thermometer
    Testo logo
    Lead Time: 1-2 Weeks
    Testo 835-T1 4 Point Infrared Thermometer
    (no reviews)
    £219.30 £182.75
    • Four spot laser pointer enables precise measurements
    • Large measurement range
    • Focused optics
    182 Reward Points
    Price Match Guarantee
    5608351
  15. Testo Smart Probes Differential Temperature and Pressure Kit
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    Lead Time: 1-2 Weeks
    Testo Smart Probes Differential Temperature and Pressure Kit
    (no reviews)
    £255.60 £213.00
    • Optimised for heating engineers
    • Measure gas flow, static pressure, and flow and return temperature
    • Designed for use with the Testo Smart Probe App
    213 Reward Points
    Price Match Guarantee
    05630015
  16. Testo Smart Probes Heating Kit
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    Only 1 In Stock
    Testo Smart Probes Heating Kit
    (no reviews)
    £260.10 £216.75
    • 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
    216 Reward Points
    Price Match Guarantee
    0563000410
  17. Testo 835-H1 Infared Thermometer
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    Lead Time: 1-2 Weeks
    Free UK Delivery
    Testo 835-H1 Infared Thermometer
    (no reviews)
    £366.18 £305.15
    • Measures both temperature and moisture
    • Laser pointer for precise measurements
    • 50:1 long distance optics
    305 Reward Points
    Price Match Guarantee
    5608353
  18. Testo Smart Probe VAC Kit
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    Lead Time: 1-2 Weeks
    Free UK Delivery
    Testo Smart Probe VAC Kit
    (no reviews)
    £392.70 £327.25
    • 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
    327 Reward Points
    Price Match Guarantee
    0563000310
  19. Testo 735-1 - Multi-Channel Thermometer
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    Lead Time: 1-2 Weeks
    Free UK Delivery
    Testo 735-1 - Multi-Channel Thermometer
    (no reviews)
    £400.86 £334.05
    • Compatible with different probes
    • High accuracy thermometer
    • Dual-probe input
    334 Reward Points
    Price Match Guarantee
    5607351
  20. Testo 835-T2 Infrared Thermometer
    Testo logo
    Lead Time: 1-2 Weeks
    Free UK Delivery
    Testo 835-T2 Infrared Thermometer
    (no reviews)
    £433.50 £361.25
    • Infrared and probe measurements
    • Wide measurement range
    • Four-point laser
    361 Reward Points
    Price Match Guarantee
    5608352
  21. Testo 735-2 Multi-Channel Thermometer
    Testo logo
    Lead Time: 1-2 Weeks
    Free UK Delivery
    Testo 735-2 Multi-Channel Thermometer
    (no reviews)
    £543.66 £453.05
    • Multi-channel temperature measurements
    • 10000 record internal storage
    • Download test data to PC
    453 Reward Points
    Price Match Guarantee
    5637352
  22. Testo Smart Probes HVAC/ R Ultimate Kit
    Testo logo
    Only 1 In Stock
    Free UK Delivery
    Testo Smart Probes HVAC/ R Ultimate Kit
    (no reviews)
    £885.60 £738.00
    • 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
    738 Reward Points
    Price Match Guarantee
    0563000232

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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.

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