Patent ID: 7536904

Claim:
A tire pressure detector and valve stem assembly comprising: a valve stem being tubular and having an outer section having a fixing nut being removably and rotatably mounted on the outer section; and an inner section being integrally and coaxially formed on the outer section and having a distal end having a domical surface; an outlet hole being centrally formed through the domical surface, being longitudinally formed through the inner section and having a threaded inner surface; a sidewall; and at least one clamping surface being flat and being tangentially formed on the sidewall; a wireless pressure detector being an electronic pressure detecting module for detecting air pressure of a tire and sending an electromagnetic wave signal corresponding to the air pressure and having a mounting surface being concave and corresponding to the domical surface on the distal end of the inner section of the valve stem; and a mounting slot being formed through the mounting surface; and a fastener being slidably and rotatably mounted through the mounting slot and being screwed with the threaded inner surface of the outlet hole in the valve stem.