Bluetooth TPMS Car Tire Tyre Pressure Monitoring System 4 External Sensors for iOS Android Bluetooth 2.4 real-time monitoring of car tire pressure and temperature. app, precise transmission. Specification: Working voltage: 3V Working current: 100A Sleep current: less than or equal to 2.2A Response time: less than or equal to 5s Display mode: APP mode Waterproof rating: IP67 Working humidity: 95% Max Tire pressure detection range: 100-1300 kPa Tire pressure detection accuracy: +/- 10 kPa Tire temperature detection accuracy: +/- 3 Working temperature: -30~+80 Storage temperature: -30~+85 Battery capacity: 140mAh Sensor type: external sensors colour: black Material: ABS Package Contents: 2 x tire pressure monitor 2 x screws 1 x wrench 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.