Abstract: A hand-held probe (10) for measuring a tire tread profile comprises a housing (20) with a slit (64) formed parallel to its major axis, a range finder (70) mounted inside the housing (20) in such a way that it can traverse much of the length of the tube while directing light from a laser through a window (60) and onto a tire surface, a bracket (50) that is carried by the proximal end of the tube to enable the user to hold the probe (10) in position against the tire, a serial port (32) for connection with a computer (40), and a handle (30) that houses the batteries for operation and an IR or RF transmitter. The IR or RF transmitter is for transmitting the tire tread profile wirelessly to a computer suitably equipped to receive IR or RF transmissions.