... normal •Tire Pressure value can be resettable •Battery Replaceable•Universal for most vehicles: Cars,Trucks, OTR ... are the parts after disassembled:2. Remove batteries and cover, to calibrate and memorise the tire ... test the sensor is working, fit the batteries and battery cover to the sensor then unscrew the ... the sensor is removed, please check the batteries are inserted correctly or repeat stops 2 and ...