Hardwired smoke detector installation is necessary to keep your home safe. Here’s your step guide to how to install smoke detectors.

With minimal external components, this smoke detectors alarm circuit will provide all the required features for a photoelectric smoke detector type electronic project. The design incorporates a ...

Ionization smoke alarms use a battery and two metal plates, called electrodes, to create an electrical circuit. Ions are tiny, electrically charged particles that flow through the circuit and ...

If you install multiples of this model on the same electrical circuit, if one detector goes into an alarm state, it will trigger all the other detectors to do the same.