Description: TPMS Car Tire Pressure Alarm Monitor System Real-time Display Attached to glass wireless Solar power tpms with 4 sensors. Solar power charging; High and low pressure, leak alarm. LCD display screen, Simple user interface. Real-time monitoring tire pressure and temperature. Two units (PSI / Bar) changeable, you can set the one you like. Specification: Size: 80X73X15mm Monitoring system body Voltage: 3.7-5V Storage temperature:-30°C-85°C working temperature:-20°C-80°C RF Emission frequency:433.92MH±20KHz RF Signal sensitivity:-90dbm Display mode:LCD Color Bright screen current:≤6mA Black screen current:≤4mA External Sensor Pressure range:0-6.0Bar Pressure resolution:±0.1Bar Package Includes: 1X Solar Charging Tyre Pressure Monitoring System 4X External Sensors Note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!