Alarm Control

Burglar alarm circuit diagram

Published:2011/4/5 21:43:00 Author:Jessie | Keyword: Burglar alarm

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Pyroelectric infrared language alarm device selection circuit

Published:2011/3/30 3:09:00 Author:Jessie | Keyword: infrared language, alarm device

Pyroelectric infrared sensor modelcan choose P2288 or LS064, need to match 120 ° 12m wide-angle Fresnel filter glass. IC1 choose SNS9201 integrated circuit or SS0001 application-specific integrated circuit. IC2is language integrated circuits BA08, it storesstatement of Dangerous, there is electricity, keep away , IC2is soft encapsulation. IC3 is a integrate circuit with four languages analog sound, working voltageis 2 4 ~ 5 5V, soft encapsulation.   (View)

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Simple infrared alarm device circuit

Published:2011/3/30 2:25:00 Author:Jessie | Keyword: infrared, alarm device

Infrared alarm device emits an infrared,can not be seen only by the naked eye, when anyone or object blocking any bunch of infrared light, alarm devicewill immediately makewarning signals.Using infraredto makealarm device, has advantages of concealed, high reliability, long life, strong anti-jamming capability, etc.   (View)

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