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· demonstrates PIR Sensor Alarm with 2 Remote to detect Motion and blow siren
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· PIR-Sensor: Infrared PIR Human Motion Sensor Detector Modules; Siren 12V; 12V DC power supply at more 1A. For example 12V battery or AC adapter. Universal PCB and more parts; Not only that I have an old circuit like this but use the infrared principle. Infrared Intruder Alarm circuit diagram. This is an Infrared Intruder Alarm circuit that ...
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· The following PIR motion sensor circuit can be easily built using the following basic set up and applied as a anti-theft alarm circuit. As the figure shows, the PIR only requires a single 1K resistor, transistor and a relay to be configured externally. The siren can be either built at home or purchased ready made. The 12v supply can be from any ordinary 12V 1 amp SMP circuit. Video Demo. 3 ...
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This portable motion sensor has a motion sensor and speaker built in. It is mainly used for detecting objects attempting to enter the monitored area. If motion is detected, a powerful 90 db alarm siren will sound off to scare the intruder away and alert others to pay attention to the motion detected event.
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