Dahua Alarm Wireless Sensor - HY-SA21A-W2(868) - For Smoke
Split-spectrum sensor technology; one-button test and silence; alarm >85 dB(A) at 3 m; low quiescent current; SMD circuit board.
Please Note
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Discontinued
This item was discontinued and currently is not available for order on our website. The item may become available soon. Please contact us if you need more information regarding the upcoming arrivals.
| Security Sensors - Connectivity | Wireless (433/868 MHz) |
|---|---|
| Security Sensors - Power | Battery |
- 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
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
- 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 8 m , the protection area of a device is 20 m2–40 m2
Power Supply
- Battery Life : 3 year
- 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
- Operating Humidity : ≤ 95% RH (non condensing)
Appearance
- Color : White
- Casing : ABS
- Dimensions : φ98mm × H43.1mm
- Weight : 140 g
- Installation : Ceiling Mount
Certifications
- Certifications : TÜV and CE listed
- Compliance Standard : EN 14604:2005+AC:2008
Wireless
- Carrier Frequency : 868 MHz–868.3 MHz
- Communication Distance : Up to 1000 m in an open space
- Communication Mechanism : Two-way
- Frequency Hopping : Yes
- Encryption Mode : AES128
| Connectivity | Wireless |
| Installation | Ceiling |
| Battery | Up to 3 Years |
| Communication | 2Way |
| Range | Up to 1000 meters |
| Certification | CE |
| Smoke Detector | Yes |