• Relative humidity (Tamb=23±5°C): 1~99%, accuracy: ±3% from 20~80%, otherwise ±5%
• Dry bulb temperature (DBT): -20~65°C, accuracy: ±2.5°C
• Wet bulb temperature (WBT): -20~65°C, accuracy: ±2.5°C
• Bluetooth Range 260' (80m) maximum line-of-sight range
• Bluetooth® 4.2 and 5

Mastercool's Digital Thermometer/Hygrometer with Bluetooth wireless technology works with our Mastercool Connect app to remotely provide dry bulb temperature, wet bulb temperature and relative humidity. Integrated into this unit is a high-performance ceramic antenna that 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 registered to see results more accurately. The mode key switches between a dry bulb, wet bulb and relative humidity while the ˚C/˚F key toggles between Fahrenheit and Celcius for easy-to-read calculations.