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IDoing Special TPMS Newest technology Car TPMS Tire Pressure Monitoring System with mini External sensor Auto support Bar and PSI 

Installation video:  https://youtu.be/PHLb9A2i0no

It has the following features:
1. Monitors and displays pressure and temperature of tires
in real time.
2.Monitors voltage of sensor batteries.
3.Promptly activates audible and visual alarms: low pressure,
high pressure, high temperature,rapid leak,sensor battery low
and no signal from sensor.
4.Displays pressure in kPa,bar,psi
5.Displays temperature in ℃
6.Allows setting thresholds for low pressure and high pressure
alarms.
7.Supports sensor pairing and sensor position swap procedure
to facilitate tire rotation.

Working environment
Receiver
Working temperature:-40℃~+85℃
Storage temperature:-40℃~+85℃
Working voltage:+2.4V~3.3V

TPMS sensor:
Working temperature:-40℃~+125℃(internal sensor)/-40℃~+85℃(external sensor)
Storage temperature:-40℃~+125℃(internal sensor)/-40℃~+85℃(external sensor)

Product specification

Working voltage: 2.4~3.3V

Battery: CR 2050350mAh

Battery life: 4-6 years

Size: 78 × twenty-seven × 23mm

Operating frequency: 2.4GHz (BLE 5.0)

Working temperature: - 40 ℃~105 ℃

Tire pressure detection range: 0~640kPa

Tire temperature detection range: - 40 ℃~85 ℃