Burglar
alarm circuit can be a part of an alarm system that also includes fire protection therein. An intrusion alarm may be part of closed-circuit television (CCTV) surveillance systems in which all the intruder activity is recorded automatically, or can be an interface for access control systems to electronically locked doors. Or even systems ranging from small to complex, self-contained noisemakers, multizoned systems with color-coded computer monitor outputs.
Monitoring windows and door contacts aimed at monitoring the intruders by using sensor technology in the form of electrical or magnetic fields, ultrasonic, vibration PIR motion detectors, and microwave. A control panel that provides power sensor is connected directly or wirelessly to the rest of the array sensor circuit or burglar alarm circuit.
This is a burglar alarm
circuit that uses the power of invisibility of the IR light beam. Just Break The Beam! This kit includes the infrared transmitter, and receiver operates on standard 9VDC batteries. It’s a highly efficient intruder alarm and free from problems during power failures.
This burglar alarm kit is not only used for cars as well for the home, room and closet. It’s very easy to build a simple way of working. When someone opens the door or tries to remove the radio, an alarm is activated and the car horn will sound.