Input voltage DC 12V ~ 24V Storage temperature -30degree ~ +85degree Operation temperature -20degree ~ +80degree Frequency 433.92MHz Monitor Dimension 86*57*26mm(L*W*H) Weight 100G Main Features: * Reliable and easy to install * Advanced American Freescale 6-in-1 wireless sensors * The monitor can be charged via car charger * Real-time tire pressure/temperature and vehicle battery power monitoring(Displays pressure or temperature of 6 tires and vehicle battery power simultaneously) * Fixed high/low pressure/temperature warnings * Instant audio alarm of abnormal pressure or temperature * Build-in high capacity rechargeable battery * Intuitive and clear interface to display the parameters of the 6 tire in turn * Sleeping mode available, super easy to install * Improve fuel efficiency, extended tire life and avoid abnormal wear of car parts * Two pressure unit(psi/bar) supply for user to select * Conveniently install, water resistant * Sensors batteries will last up to three years(you can replace the battery Autonomously, do not need to return to manufacturers) * Sensors transmit pressure and temperature data every 3 seconds * Sensors can detect 0-15BAR tire pressure Package Contents 1 * U901 Tire Pressure Monitor 1 * Mounting bracket 1 * Car Charger 1 * Repeater 6 * External Sensor 6 * Screw Nut 1 * Spanner(for lock/unlock sensor) 1 * Sensor tool (for battery replacement) 1 * Instruction Manual 1 * Installation Manual