Used to verify a vacuum before charging the refrigerant system and also to identify small leaks. Works in conjunction with the TPI View App. Sends live measurements, where multiple GPS reports can be created, ready for distribution via e-mail or other sharing apps. Read direct on the LCD display or remotely using the TPI View app. View 'Live' pressure readings wirelessly on a smartphone or tablet and instantly save, e-mail and/or print. Built-in hook and loop magnets for hands-free use. Over 50m range (depending on obstacles/line of sight). Pressure in psi, mbar, µ, inHg, Pa, Torr & mTorr Real-Time Read-Out Backlit Display Pressure Range: 25-12000 Microns 3 Year Manufacturer's Guarantee (T&Cs Apply) Pressure in psi, mbar, µ, inHg, Pa, Torr & mTorr Real-Time Read-Out Backlit Display Pressure Range: 25-12000 Microns 3 Year Manufacturer's Guarantee (T&Cs Apply)