Specification :

Big screen, show 4 tire's pressure and temperature at the same time in same screen. Water-proof function, over 5 year's battery life. Give visual and audible alarming.

Transmitter:
Working temperature: -40C ~ +125C
Working humidity: 100%
Weight: 35g
Size(LxWxH): 71mm x 53mm x20mm
Battery life: 3 years (average 4 hours driving per day)
Pressure detect range: 0~350 kPa (accuracy: 1.3725 kPa), 0~51psi (accuracy: 0.20psi)
Temperature detect range: - 40 ~ 99C (accuracy: 1)
Transmit frequency: ASK 433.92 MHz
Receiver:
Working temperature range: -20C ~ +85C
Weight: 120g
Size(LxWxH): 85mm x47mm x46mm
Receiving frequency: ASK 433.92MHz
Current consumption; 17mA(Normal); Alert 21mA(Max); 3.6V rechargeable Lithium battery or DC 12V
Charging current: 800mA