Electro-magnetically controlled pet door

摘要: An electro-magnetically controlled pet door having a ( 1 ) pivotally mounted in aperture 17 of frame 2 and an electrically catch mechanism normally preventing opening the at least one direction that is released when magnet 30 carried by animal approaching sensed two or more reed switches 23,24 on connected parallel. The are disposed array extending circumferentially said have open contacts magnetic biasing means 26,27 associated with positioned laterally thereof to increase their sensitivity.