DAHUA WIRELESS SMOKE ALARM (HY-SA21A-W2)

Model
Dahua HY-SA21A-W2 Wireless Smoke Alarm
Sensor Type
Photoelectric (Split-Spectrum Technology)
Detection Type
Smoke Detection
Alarm Type
Smoke Alarm, Fault Alarm, Low Battery Warning
Alarm Volume
85–90 dB at 3m
Alarm Mode
Visual (LED) & Audible
Silence Function
Yes (Approx. 12 Minutes)
Coverage Area
20–40 m² (Up to 8m Height)
Frequency
433.1 – 434.6 MHz
Wireless Range
Up to 1000m (Open Area)
Communication
Two-Way with Frequency Hopping
Security
AES128 Encryption
Indicators
Red & Green LED Status Indicators
Power Supply
3V CR123A Lithium Battery (Up to 3 Years Life)
Operating Temperature
-10°C to +55°C
Installation
Ceiling Mount
Certifications
CE, TÜV (EN 14604 Standard)
Usage
Home & Office Fire Safety, Smoke Detection