Mastercool® 52234-BT - Digital Thermometer and Hygrometer with Bluetooth™ Wireless Technology (-4°F to 150°F)

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Product Details

Digital Thermometer and Hygrometer with Bluetooth™ Wireless Technology (-4°F to 150°F) by Mastercool®. Integrated into this unit is a high-performance ceramic antenna which offers maximum Bluetooth® wireless technology range. This digital thermometer/hygrometer will allow for varying the refrigerant charge in a system and seeing in real time how the supply parameters change, it will also do the same for vehicles. The convenient clip, can easily be attached to a vent louver or register to see results more accurately. The mode key switches between dry bulb, wet bulb and relative humidity while the ?C/?F key toggles between fahrenheit and celcius for easy to read calculations.


Relative Humidity Tamb: 73°F +/-9°F (23°C +/-5°C)
Accuracy: +/-3% from 20 to 80%, otherwise +/-5%
Wet and Dry Bulb Temperature (DBT): -4°F to 150°F (-20°C to 65°C)
Wet and Dry Bulb Accuracy: +/-4.5°F (+/-2.5°C)
Battery Life: 40 hours continuous use, battery shelf life 8 months
Battery: one CR2032 lithium cell battery
Dimensions: 2.2 x 2.1 x 1.7” (54.9 x 52.6 x 43 mm)
Weight: 1.2 oz (35 g)


  • Expertly developed to provide a high level of safety and quality
  • Designed and manufactured using innovative technologies
  • Created by professionals to meet your requirements

Mastercool® is a family owned and operated company that has been supplying professional air conditioning, service tools and equipment for over 35 years. As one of the fastest growing companies in this market, Mastercool’s name is synonymous with “World Class Quality” and uniquely innovative product design. With Mastercool never-ending focus on new technology, Mastercool has been awarded many patents worldwide. In addition to Mastercool’s headquarters located in the United States, Mastercool Belgium and Brazil offices also features a full inventory and staff. This has enabled Mastercool to set up distribution to over 60 countries demonstrating that they are truly a multi-national company.

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Mastercool® 52234-BT - Digital Thermometer and Hygrometer with Bluetooth™ Wireless Technology (-4°F to 150°F)

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