M5 Motorcycle TPMS Wireless Motorbike Tire Tyre Pressure Monitoring Alarm System with 2 External Sensors Feature: 1. Simultaneous display of tire pressure and temperature; 2. Alarm for abnormal tire pressure and temperature; Alarm when tire pressure is higher than 3.2 bar (default value) Alarm when tire pressure is lower than 1.8 bar (default value) Alarm when tire temperature is higher than 70 (default value) The default value can be adjusted according to actual needs 3. Red and blue atmosphere warning light: The warning light is blue when the tire pressure is normal, and red when it is abnormal; 4. USB power supply; 5. 5 alarm methods: rapid leak alarm, high and low pressure alarm, high temperature alarm, sensor low pressure alarm. Specification: Receiver: Transmission frequency: 433.92MHz Power supply: USB powered Working voltage: DC 5V Pressure unit: bar/psi Temperature unit: / Working temperature: -20 - 85C Storage temperature: -40 - 125 External sensor: Transmission frequency: 433.92MHz Pressure range: 0-3.5 bar / 0-47psi Default low pressure alarm value: 1.8 bar Default high pressure alarm value: 3.2 bar Measurement accuracy: 0.1 bar / 1.5 psi Working voltage: DC+2.0 - 3.6V Working temperature: -20 - 85C Storage temperature: -40 - 125 Waterproof: IP67 Battery: Built-in CR1632 button battery (the battery can be removed and replaced by yourself) Battery life: 1-1.5 years Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow slightly measuring deviation due to manual measurement. 1 X Receiver 2 X External Sensor 2 X Anti-Theft Nut 1 X USB Cable 1 X Wrench 1 X Bracket 1 X Instruction