Description : 01. TPMS USB line charge, built-in lithium battery solar panel to help charge to extend the working hours of the display, 6* replaceable battery external sensor, can be switched to 4* sensor during use. 02. Accurating real-time monitoring of tire pressure and temperature, four-wheel data. 03. Keeping the tires balanced to prevent car accidents, save fuel, reduce wear and extend tire life. 04. The display has three adjustable brightness to adapt to different environments. 05. Built-in high temperature explosion-proof lithium battery, fast charging, long lasting power 06. PSI, BAR two pressure unit selection, C and F two temperature unit selection 07. The sensor has been accurately matched to each tire position before leaving the factory. 08.TPMS dedicated wireless radio frequency technology, real-time sensor update data, rapid alarm and splash screen when tire pressure and temperature are abnormal 09. TPMS dedicated Freescale chip solution, six in one, the signal is more stable and reliable, the monitoring data is more accurate 10.DIY replaces the sensor battery. If you replace the newly purchased sensor, you need to re-match the receiving signal with the display. Specification : Receiving frequency: 433.92MHz Battery capacity: 2200 mAh Battery voltage: 3.7V Input voltage: DC 5V Working temperature: (-20 C ~ +80 C) Storage temperature: (-30 C ~ +85 C) Size ( L*W*H )mm: 120*34*45mm Weight: 133.0g Sensor parameters: Transmission frequency: 433.92MHz Pressure range: 0 ~ 116psi (0 ~ 8bar) Pressure accuracy: 1.5 PSI (0.1 bar) Working temperature: (-40 C ~ +105 C) Storage temperature: (-40 C ~ +120 C) Battery model: CR1632 Battery capacity: 120 mAh Battery voltage: 3V Battery life: 2 years or so Size: Height: 15mm, Diameter: 23mm Weight: 9.5g Pictures : Package include :