Electronic Fire Alarm EdocationAugust 29, 2019 DetailsTitle: Electronic Fire Alaram Camera: NIKON COOLPIX L820 Resolution: 4608 x 3456 Size: 3.23 MB Extension: JPG Bit depth: 24 F-Stop: f/5.1 Exposure time: 1/15 sec. Exposure speed: ISO-400 Exposure bias: 0 step Focal length: 29 mm Max. aperture: 3.2 35 mm focal length: 162