Optical smoke detector is a project implemented on the Arduino board and works on the phenomenon of light scatter principle. An Optical Smoke Detector is a device that senses smoke, typically as an ...

In Figure 1(a), the DC bridge configuration uses a photoelectric device to detect the presence of smoke and to sound the alarm. A photograph of a photoelectric smoke detector appears in Figure 1(b), ...

With the launch of a new intelligent Remote Test Capable photoelectric detector (2251BR), System Sensor adds simplified remote testing capability to the updated DNR and watertight NEMA DNRW ...

New Hampshire-based company FreshAir Sensor was founded by Dartmouth Professor of Chemistry, Joe BelBruno. FreshAir Sensor's creation, benignly dubbed "AirGuard," could easily become the bane of a ...

My smoke detectors were dying, with a scheduled end-of-life date of 2016. Because I'm the kind of person who over-researches even the best kind of hangers to use in his closet, this provided the ...