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 needs3. 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: 433.92MHzPower supply: USB poweredWorking voltage: DC 5VPressure unit: bar/psiTemperature unit: /Working temperature: -20 - 85CStorage temperature: -40 - 125External sensor:Transmission frequency: 433.92MHzPressure range: 0-3.5 bar / 0-47psiDefault low pressure alarm value: 1.8 barDefault high pressure alarm value: 3.2 barMeasurement accuracy: 0.1 bar / 1.5 psiWorking voltage: DC+2.0 - 3.6VWorking temperature: -20 - 85CStorage temperature: -40 - 125Waterproof: IP67Battery: Built-in CR1632 button battery (the battery can be removed and replaced by yourself)Battery life: 1-1.5 yearsNote: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.Included1 X Receiver2 X External Sensor2 X Anti-Theft Nut1 X USB Cable1 X Wrench1 X Bracket1 X Instruction