ITEM NAME:Smart Car TPMS Tyre Pressure Monitoring System Solar Power charging V2N2 Smart Car TPMS Tyre Pressure Monitoring System Solar Power charging V2N2 Item Type: Alarm Systems and Security Item Weight: 0.4kg Voltage: 12V Special Features: Tire Pressure Monitoring System Material Type: ABS Pressure accuracy: +-1.5Psi/+-0.1bar Compatible: FOR BMW AUDI FORD toyota Opel skoda etc External: Battery life 2-3 years, external screw lock. Easy DIY installation done in 10 minutes. Internal: Battery 5 years, Internal lock. Solar power charging, LCD color displaying, adjustable brightness Rear-time monitoring the pressure & temperature Low air pressure/high temperature warning Set up sensor: learn new sensor ID code when replace sensor Sensor Specification: Operating frequency: 433.92Mhz Working temperature: -40 Celsius -120 Celsius Humidity: 0% to 100% Battery life: External sensor Greater than 2 years/ 30,000 km Working pressure: 0 - 99Psi Alarm pressure: Greater than 46.5Psi or Less than 26.0Psi Working voltage: 2.1-3.6V Waterproof: Ip67 Monitor Specification: Adhere to windscreen for installation Operating frequency: 433.92Mhz +/- 50KHz Operating voltage: 3.7-5 V Working temperature: -20 Celsius -75 Celsius colour: black Package Contents: 1 * solar USB display 4 * external sensors 4 * anti-theft nuts 1 * wrench 1 * rapid charging line 1 * instruction manual Only the above package content, other products are not included. Note: Light shooting 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.