Title: Alarm device
Application Number: 98114001 Application Date: 1998.05.19
Publication Number: 1236148 Publication Date: 1999.11.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G08B13/02,G08B13/12
Applicant(s) Name: Shenyang Electromechanical Design Inst. Address: 110006
Inventor(s) Name:
Attorney & Agent: pei shiliang
Abstract:
     The alarm device for house guard has voltage stabilizer and battery connected to automatic power supply change-over circuit, which has output connected to input of self-locked magnetic control switch circuit connected serially to the magnetic control executor circuit and network control circuit. The enclosure guard network of insulated wires is connected to the network executor circuit. In case of broken guard network wire and prized door or window, the high sensitivity, accurate and reliable alarming and easy installation and operation.
Time: 5
<- Previous Patent:Anti-riot system for taxi   |  Next Patent:Monitor for automatic detecting a... ->