tpms tyre pressure monitoring system solar power lcd display with 4 internal/external sensor replaceable battery psi/bar mode

use solar energy to get electricity,with 4 external/internal sensors.
2.led pannel,with extra mini usb port for charging.
light weight design for sensor,no need to adjust to balance when the tire moving. light weight design for sensor,no need to adjust to balance when the tire moving.
4.monitoring the tempreature and pressure with high degree accuracy, display for 4 tires at the same time. sensor waterproof grade:ip5k4k.
10.with cale chip and renata anti-explosion battery.
transmitting frequency:433.92mhz
size( l*w*h )mm:88*76.48*28.4mm.syi