What if you could get an instant SMS alert the moment a fire or smoke is detected at home or office? Through this project tutorial, you can build a fire and smoke alarm ... R4 Board support package.

Optical smoke alarm uses MOC 7811 which ... Sensitivity of the sensor can be set by changing the variable resistence of 4.7kΩ. Capacitor C1 is used in case the power cuts off the circuit will still ...

LITTLE ROCK, Ark. (KATV) - An Arkansas family is suing Airbnb after finding a camera hidden in a smoke detector on one of their trips. “I looked at my wife and I said, ‘That’s a damn video ...

HICKORY, N.C. — A smoke alarm sounded in a two-story Hickory home on Sunday, allowing the occupants to evacuate safely, officials reported. ALSO READ: 2 teens in connection to Hickory homicide ...

The X-Sense Smart Smoke Alarm Kit FS31 comes with one base station that needs to be plugged in and three battery-powered alarms that can be placed anywhere in the house. All are then connected via ...