Description
DHI-HY-SA21A-W2(868) Wireless smoke detector
The Dahua wireless smoke detector offers battery-powered smoke detection and alarm functions within one unit. Advanced electronics in combination with a photoelectric smoke detection chamber ensure early detection of smoke and high immunity against false alarms. This type of smoke detector does not require a mains power supply and is suitable for general residential applications. Timely notification from the smoke detector can be displayed on the DMSS app in real time.
Specifications:
- Working Principle
- Collection Type - Smoke
- Sampling Period - 10 s
- Sensor Type - Photoelectric
Alarm
- Alarm Type - Smoke alarm, fault alarm, low battery warning
- Alarm Volume - 85dB–90dB(A) at 3 m (9.84 ft)
- Alarm Mode - Visual and audible alarm
- Silence Function - Yes
- Silence Duration - About 12 min
- Alarm Response - Threshold 0.2 dB/m - 0.3 dB/m
Basic Parameters
- Indicator Light - Red and green LED 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 8m (3.28 ft), the protection area of a device is 20 m2 –40 m2
Power Supply
- Battery Life - 3 years
- Operating Voltage - 3V CR123A lithium battery (replaceable)
- Operating Current - Monitoring current: ≤ 35uA 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 - φ98mm × H43.1mm (φ3.85" × H1.70")
- Weight - 140g (0.30lb)
- Installation - Ceiling Mount
