Universal Truck BUS Wireless TPMS Tire Pressure Monitoring System Color LCD Display with 6 External Sensors Input voltage DC 12V ~ 24VStorage temperature -30degree ~ +85degreeOperation temperature -20degree ~ +80degreeFrequency 433.92MHzMonitor Dimension 86*57*26mm(L*W*H)Weight 100GMain 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 pressurePackage Contents1 * U901 Tire Pressure Monitor1 * Mounting bracket1 * Car Charger1 * Repeater6 * External Sensor6 * Screw Nut1 * Spanner(for lock/unlock sensor)1 * Sensor tool (for battery replacement)1 * Instruction Manual1 * Installation Manual