ITEM NAME:Solar Power Car TPMS Wireless Tire Pressure Monitor Alarm System LCD Displa B2X6 Solar Power Car TPMS Wireless Tire Pressure Monitor Alarm System LCD Displa B2X6 Features: 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. Best commercial level quality, perfect quality, durable and useful. Description: Operating frequency: 433.92Mhz Working temperature: -40 ℃ -120℃ Humidity: 0% to 100% Battery life: External sensor> 2 years/ 30,000 km Working pressure: 0 ¨C 99Psi Alarm pressure: >46.5Psi or