Patent ID: 7624849

Claim:
A sensor for attachment to a brake chamber having a moveable push rod comprising: (a) a sensor housing comprising: (i) a magnetic flux plate; (ii) a PCB board having a plurality of spaced apart Hall switches; (b) a bracket connecting said sensor housing to said brake chamber comprising: (i) an attachment portion; (ii) an attachment arm connected to said attachment portion at a substantially perpendicular angle relative said attachment portion in a first reference plane and at an acute angle at a second reference plane; (iii) said attachment portion and attachment arm each including a slot; (iv) said attachment portion slot adapted for connection to said brake chamber; (v) said attachment arm slot adapted to receive said sensor housing; (c) a magnet connected to said moveable push rod wherein said magnet comprises a magnetic clevis pin for displaceable movement relative to said sensor housing, whereby said POB board disposed between said magnetic flux plate and said magnetic clevis pin generates a signal in response to said magnetic clevis pin for measuring the brake condition of a vehicle.