The idea behind this compact and economical Vibration Sensor Alarm is very simple. It uses a cheap and cheerful vibration sensor to drive a piezo-sounder. As can be seen in the circuit diagram, it is ...

Ring might be best-known for its lineup of video doorbells, but the company also produces an impressive array of alarms and sensors to help secure your home. One of its most popular security gadgets ...

General purpose circuit of the simple pressure sensor alarm is built around a couple of readily available cheap components. Working of this circuit is straight forward and self-explanatory. When the ...

The Fist Alert SA3210 Dual Sensor Ten Year Alarm makes use of both ionization and photoelectric sensors to offer the earliest possible warning--regardless of the type of fire. While all smoke alarms ...

I drifted off to sleep cloaked in a dimming, rosy glow. Seven hours later, I awoke to a soft light that could've been from the sun had it not been for the fact that my blinds were down. Ripped from a ...