TPMS/Tire Pressure Monitoring System for Car/ Auto Temperature measure precision: ±3°C Normal lifespan of sensor: over 5 years Pressure measurement range: 0 to 65psi Pressure measure precision: ±1.45psi Alarm system is available for sensor Four options for pressure unit: kPa, psi, bar and kgf/cm2 Rechargeable Lithium battery for the monitor Sensors operating temperature: -40 to 125°C Receiver and monitor temperature: -20 to 60°C Monitor signal receiving frequency: 433.92MHz Signal transmitting frequency: 433.92MHz Monitor size: 82 x 55 x 23.4mm Sensor dimensions: 28.5 x 27.5 x 27.5mm Sensor weight: 21g