App is a TPMS remote reader for iPhone through bluetooth BLE.
A user guide can found here...
http://www.chyt.com.tw/tpms/khc20/KHC_20_EN.pdf
A tire pressure monitoring system (TPMS) is an electronic system designed to monitor the air pressure inside the pneumatic tires on various types of vehicles. TPMS report real-time tire-pressure information to the driver of the vehicle.
You must have specific sensor for this App.
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