Dahua WisuAlarm Wireless Standalone Smoke Alarm HY-SA20A

• Split-spectrum sensor technology
• Test and hush features in one single button
• Loud sound output over 85 dB(A) at 3 meters
• Low quiescent current consumption
• Surface-mount device (SMD) circuit board design
• Low battery warning signal

Specifications

Working Principle

• Collection Type : Smoke
• Sampling Period : 9 s
• Sensor Type : Photoelectric

Alarm

• Alarm Type : Smoke alarm, fault alarm, low battery warning
• Alarm Volume : 85dB (A) at 3 m (9.84 ft)
• Alarm Mode : Visual and audible alarm
• Silencing Function : Yes
• Alarm Response Threshold : 0.2dB/m-0.3dB/m

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

Certification

• Certifications : TÜV and CE listed
• Compliance Standard : EN 14604:2005+AC:2008