Features: 1. Monitors and displays pressure and temperature of tires in real time. 2.Monitors voltage of sensor batteries. 3.Promptly activates audible and visual alarms: low pressure, high pressure, high temperature, rapid leak, sensor battery low and no signal from sensor. 4.Displays pressure in kpa,bar,psi 5.Displays temperature in ℃ or  ℉. 6.Allows setting thresholds for low pressure and high pressure alarms. 7.Supports sensor pairing and sensor position swap procedure to facilitate tire rotation.   Working environment Receiver Working temperature:-20℃~+70℃ Storage temperature:-20℃~+80℃ Working voltage:+12V   TPMS sensor: Working temperature:-400℃~+125℃(internal sensor)/-20℃~+85℃(external sensor) Storage temperature:-400℃~+125℃(internal sensor)/-20℃~+105℃(external sensor)