Eine Kombination eines Kraftfahrzeugs mit einem Alarmsystem

摘要

An electronic anti-theft alarm apparatus to be used in conjunction with an automobile which relies on pressure as being the activating medium for the alarm apparatus. There is mounted within the passenger compartment of the automobile within the circuit of the alarm apparatus a pressure sensor. When this pressure sensor detects a pressure change, the alarm is activated. Included within this circuit and mounted exteriorly of the passenger compartment but yet on the body of the automobile is a second pressure sensor. When both pressure sensors detect a pressure change, activation of the alarm is prevented. This will eliminate false alarms from occurring due to an exterior pressure change such as when closing a garage door and opening a door from a house to a garage. Activation of the alarm apparatus is only to occur when the pressure sensor that is mounted within the passenger compartment detects a pressure change and the exterior pressure sensor does not so detect that change.