This circuit generates a warning alarm when someone tries to lift your luggage while you are traveling in bus or train so that we may get alerted. During our journey through train and bus, we carry ...

While there are a lot of similarities between fire alarms and security systems, it is crucial to be aware of the differences, and wiring is one of the biggest. Like security panels, fire alarm control ...

Normally, the fire alarm initiating device, notification appliance and signaling line circuits are not run outside the building. When we have no choice but to run them overhead or underground, ...

Here is an inexpensive circuit of a wireless cashbox security alarm realized using generally available low-cost components. Why it is inexpensive when compared to readily available wireless security ...