Standalone Smoke Alarm, Dahua
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
Built-in battery, easy installation

Standalone Smoke Alarm (hereinafter referred to as the device) is designed to continuously monitor smoke concentration. Adopting new split-spectrum sensor and a built-in high-volume buzzer, it responds quickly and becomes highly sensitive with stable performance and low
false alarm. Once the surrounding smoke concentration reaches the alarm value, it will promptly send out visual and audible alarm signal to remind the user to take immediate measures.
Scene
The device can be widely used in residential areas such as villas, apartments and dorms, including reading rooms, living rooms,bedrooms and hallways.
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 |
| Silence Duration | About 12 min |
| 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 (non-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 | Plastic |
| 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 |
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| Weight | 0.500000 |
|---|---|
| Brand | Dahua |
| Model | DHI-HY-SA30A |
| Color | White |
| Battery | Built-in battery, easy installation |
| VOX Audio Detection | No |














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