Sash sensor base plate assembly

An apparatus for mounting a sensing means in the stationary track of a sliding door or window, the sensing means being adapted to determine the position of the sliding door or window as it moves in the track, said apparatus comprising:

• an elongated polyvinylchloride base having a front and a back surface, with a first recess located in said front surface thereof for receiving the sensing means;
• and a second recess located in said back surface thereof wherein each of said recesses is substantially rectangular, and said base has a generally "I" shaped transverse cross section along its length, said "I" shaped cross section being defined by a middle portion and two end portions, said end portions having two edges, said edges extending transversely in opposite directions from each side of said middle portion;
• a first adhesive means for securing the sensing means in said first recess of said base wherein the combined thickness of said first adhesive means and of the sensing means is less than the distance each of said ends extend beyond said middle;
• and,
• a second adhesive means located in said second recess for securing said base to the stationary track.