Magnetic key lock provided with an alarm system

摘要: A magnetic key lock provided with an alarm system, the including a normally closed first switch and open second switch, both switches being connected to system so that is activated when are closed. The associated tumbler of upon movement or pick inserted into slot lock. sensor adjacent proper magnet-bearing can activate before by in order delay activation for selected time period allow while opening inactivating system. futher test working ability include wirelessly controlled remote alarm. When thekey mounted door, another be door forced without using key, where latch knob inside door.