Feature: 1. By using the advanced 4-in-1 wireless sensors that highly integrated pressure and temperature sensor we offer the top of the line and reliable TPMS for you. 2. DIY replace battery, powered by 2 pcs AAA batteries, you can replace battery by yourself. 3. The intuitive monitor and smart buzzer secure a safer driving experience for you. 4. Reduce fuel consumption and vehicle wear and tear. Instant audio alarm of abnormal pressure or temperature. 5. Suitable for most vehicles: Sedan car, SUV, Station wagon, MPV, Off-road vehicle, Minibus Van. Specification: This wireless Car Tire Pressure Monitoring System is supplied with 4 external sensors and a digital monitor to monitor the tyre voltage and temperature of your vehicle 24-hour every day. Keep you stay away from tire accidents. Features: By using the advanced 4-in-1 wireless sensors that highly integrated pressure and temperature sensor we offer the top of the line and reliable TPMS for you. DIY replace battery, powered by 2 pcs AAA batteries, you can replace battery by yourself. The intuitive monitor and smart buzzer secure a safer driving experience for you. Reduce fuel consumption and vehicle wear and tear. Instant audio alarm of abnormal pressure or temperature. Suitable for most vehicles: Sedan car, SUV, Station wagon, MPV, Off-road vehicle, Minibus Van. Specifications: Power supply: 2 pcs AAA batteries(not included) Monitoring Air pressure range: 0-3.5BAR Product size: shown as picture Package size: 18.5*13.2*5.8cm Packge weight: 185g NOTE:This one is battery powered, not solar powered! Pakage list: 1 set Tyre Pressure Monitoring System Package List: 1 set Tyre Pressure Monitoring System