With this product, it will accurately show your tires situation depending on the data reading on the display. In this way, you can know the tire condition and keep your travel safe.
Features:
Applicable to all types of vehicles, not only SUV, ORV, minibus but also wagon.
Two ways of charging for your TPMS, USB charge and powered by solar energy, no need to worry about electricity anymore.
Real-monitoring in time of pressure & temperature of 4 tires.
Built-in sensors and external sensor options, meets all your needs.
Color Digital LCD display, clear to show tire information.
IP67 waterproof grade, shock and fall proof, safety protection, wear resistance.
Specifications:
Material: ABS
TPMS Receiver: 
Operating Voltage: DC 5V
Receiving Frequency: 433.92MHz
Powered by: 1 * built-in 403040 3.7V 400mAh
Internal Sensor:
Working pressure: 0 - 51 psi / 0 - 3.5 bar
Transmission frequency: 433.92MHz
Pressure accuracy: ± 1.5 psi
Pressure unit: psi/bar
Temperature unit: Deg.C / Deg.F
Operating voltage: DC 5V
Waterproof grade: IP67
Powered by: built-in CR2050 button cell (Included, Already place in each sensor) 
Lifespan: 2 - 5 years
Charging: USB / Solar
External Sensor:
Working pressure: 0 - 51 psi / 0 - 3.5 bar
Transmission frequency: 433.92MHz
Pressure accuracy: ± 1.5 psi
Pressure unit: psi/bar
Temperature unit: Deg.C / Deg.F
Operating voltage: DC 5V
Waterproof grade: IP67
Powered by: built-in CR1632 button cell (Included, Already place in each sensor) 
Lifespan: 1-2 years 
Charging: USB / Solar
Package Size: 155 * 135 * 60mm / 6.10 * 5.31 * 2.36 in 
Package Weight:  316g / 11.15 ounce
Package List: 
1 * Tire Pressure Monitor
4 * Sensors
1 * USB Cable
1 * Wrench
1 * User Manual