Product Name: Hot Sales ABS Plastic Smoke Detector Alarm Smoke Sensor Restaurant Hotel Use Model NO.: YG-07A Certification: CE, ISO, FCC, CCC Usage: Personal, Smoke, Fire, Auto, Hall Application: Home, Communication Electronic Products, Industry, Special Equipment Type: Smoke Alarm System: Microwave System Signal Transmission: Radio Waves Trademark: wolf guard Specification: CE, FCC, ROHS, OEM/ODM Services for 18 years Origin: China HS Code: 85311000 Product Description Wireless Hot sales ABS Plastic Smoke Detector Alarm Smoke Sensor Restaurant Hotel UseParameterOperating voltage: 3V battery (2 AA LR6 AM3 1.5V)Quiescent current: <1uASensitivity: 2.06ft% ± 1.3ft%Low-voltage alarm: less than 2.5VAlarm sound pressure: ≥85Db / 3m placeWireless transmission frequency: 315MHz / 433MHzWireless transmission distance: 75 meters (open distance)Protection area: when the space height is 6-12 meters, the protection area is 80 square meters; while the height is 6 meters ; the protection area is about 60 square meters; specific parameters should be based on the automatic fire alarm system design specifications GB50116-98. Working environment: temperature -10 ºC ~ +50 ºC, relative humidity <90% RHShell material: flame retardant ABSDimension: 81 * 81 * 46mmImplementation of standards: GB4715; GB4716; En14604; UL217