Product Name: motorcycle tire pressure monitoring display screenWorking frequency: 433.92mhzWorking voltage: 5VWorking current: 28ahProduct Name: tire pressure sensorWorking frequency: 433.92mhz + 0.05Working temperature: - 30 Celsius ~ 70 CelsiusWorking voltage: 2.1v-3vWorking current: static 1mah / instantaneous emission Less than 18mahMonitoring range: temperature (40 Celsius - + 90 Celsius) / air pressure (0-88bar) / accuracy ( 0.1bar)Power supply: solarFunction: WaterproofItem Type: Alarm & Security Features: Tire pressure monitoring / tire temperature monitoring / active alarmModel Name: M7 Motor Tire Pressure Monitoring System TPMSType: PortableColour:blackMaterial:ABS Package Contents:1 x Solar Motorcycle Tire pressure display2 x external sensorOnly 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.