Smart, wireless high-pressure refrigeration probe used to measure high pressure on the high and low side of refrigeration systems. Ideal for checking for compressor leaks and works in conjunction with the TPI View App. Sends live pressure measurements, where multiple GPS reports can be created ready for distribution via e-mail or other sharing apps. Works with - iOS App - Android App Real-Time Read-Out Without Display Auto Power Off in 10 Minutes Measures Up To 870psi/60bar Pressure in psi, bar & kPa 3 Year Manufacturer's Guarantee (T&Cs Apply) Hub Not Required Works with - iOS App - Android App Real-Time Read-Out Without Display Auto Power Off in 10 Minutes Measures Up To 870psi/60bar Pressure in psi, bar & kPa 3 Year Manufacturer's Guarantee (T&Cs Apply) Hub Not Required