Security Alarm Circuit Electronics Hub

From intrusion and unauthorised access. All you need is just to place this circuit in front of the locker or below the mat so when any unknown person come and walk over the switch the circuit will trigger and sound of alarm comes. Installing fire alarm systems and smoke sensors in commercial buildings like offices movie theatres shopping malls and other public places is compulsory.

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The cathode of the photo diode is connected to supply while anode is connected to 10kω resistor.

Security alarm circuit electronics hub. It is placed at the maximum possible range from photo diode. There are different types of security systems available and laser based security system is an important and efficient type. This circuit will help you to guard your precious documents as well as jewellery from intruders or theft. The basic building block of this circuit is cd4011 along with some other components viz.

Luggage security alarm circuit description. Laser based security system is a type of security and alarm system that uses laser light and a light sensor. Resistors capacitor along with transistor and relay which is used to save your important things from robbery with the help of this easy circuit. Read this post for its circuit diagram and working.

The ir transmitter or ir led is connected to a current limiting resistor of 150ω and connected to supply. Fire alarm circuits and smoke sensors are a part of the security systems which help in detecting or preventing damage. Pull pin security alarm system is a circuit which helps to alert when anybody picks our pockets or bags. A security system protects our homes offices banks lockers etc.

Circuit design of burglar alarm system.