Wisu Alarm Optical Smoke Detector With 10 Year Battery Life

10-year standalone smoke alarm provides battery-powered smoke detection and alarm functions within a single unit. Advanced electronics in conjunction with a photoelectric smoke sensing chamber provide early detection of smoke and high immunity against unwanted alarms. This kind of smoke alarm device does not require a mains supply and is suitable for general residential applications.

Basic Parameters
Indicator Light	Alarm, fault and operation indicator
Led Instructions	Standby: Green indicator flashes once per minute Alarm: Red indicator flashes once per second Fault: Red indicator flashes once per minute Low battery warning: Red indicator flashes once per minute
Coverage Area	When the height of the space is less than 8 m (3.28 ft), the protection area of a device is 20 m2–40 m2
Power Supply
Battery Life	10 year
Power Source	3V CR123A lithium battery (replaceable)
Operating Current	Monitoring current: ≤ 15uA Alarm current: ≤ 35mA
Operating Ambient
Operating Environment	Indoor
Operating Temperature	-10°C to +55°C (+14°F to +131°F)
Operating Humidity	≤ 95% RH (non condensing)
Appearance
Color	White
Casing	ABS
Dimensions	φ98 mm × H43.1 mm (φ3.85" × H1.70")
Weight	136 g (0.30 lb)
Installation	Ceiling Mount