ITM's Uni-Sensor is the ultimate Tire Pressure Monitoring Sensor (TPMS) and one of the first programmable solutions designed to be Ultimate O.E sensor replacement for United States and Canadan market.Battery Life: 5+ years.Storage Temperature:-40C to +125C.Operating Temperature: -40C to +125C.Operating Humidity: 90%.Operating Frequency: 315 MHZ or 433.92MHZ.Pressure Monitoring Range: 0 to 60 psi (450kpa).Pressure Reading Accuracy: ±1psi (±7kpa) at normal pressure range, 0 to 50 units.Temperature Reading Accuracy: ±4 at -20 to 70 units.G sensor Reading Accuracy: ±18.75% at -40C to 90C.Transmission Power: typical 8 dBm (both 315MHZ & 433MHZ).Battery: 3.0V.Sensor Weight: 35g (1.23oz).