DETECTOR SMOKE ALARM/HY-SA21A-W2-868 DAHUA

System Overview
Dahua Wireless 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 does not require a mains supply and is suitable for
general residential applications. Timely notification of the smoke alarm
can be displayed on DMSS App in real time.

Scene
Mainly applied for villas, shops, apartments, etc.

• Split-spectrum sensor technology
• Test and silence 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