A tire pressure gauge includes a tubular housing, an air ventilating member dividing the housing into receiving and coupling chambers, a flexible diaphragm disposed in the receiving chamber and having a raised portion which is movable in response to an air...

A multifunction car theft alarm lock with tire pressure sensing device, includes a lock unit adapted to lock the steering wheel of a car, a sensor module providing multiple sensing modes to enhance the anti-theft function, and tire pressure sensors adapted...