DAHUA smoke detector DHI-HY-SA40A-R8

Advanced wireless smoke detector with innovative split-spectrum technology for fast and accurate smoke detection.

The detector uses the photoelectric detection principle with an advanced split-spectrum sensor, which ensures high sensitivity while minimizing false alarms. The device continuously monitors smoke concentration with a sampling period of 9 seconds and immediately activates a visual and audible alarm when the threshold value of 0.2-0.3 dB/m is reached.

Thanks to the wireless connection at a frequency of 868 MHz, a network of up to 24 interconnected detectors can be created with a range of up to 1000 meters in open areas. When one detector is activated, an alarm is automatically triggered on all connected devices in the network, ensuring maximum security throughout the entire building.

Advanced signaling and diagnostics
The detector is equipped with a three-color LED signaling - the green LED flashes once per minute in standby mode, the red LED flashes once per second in alarm and twice per minute in fault. The 9-minute mute function allows temporary suppression of the signal.

Easy installation and maintenance
Designed exclusively for ceiling mounting, the device is easy to install thanks to its compact dimensions and low weight. It requires no maintenance during the entire 10-year battery life, which provides reliable operation without the need for replacement.

Certifications and standards
The detector complies with the European standards EN 14604:2005+AC:2008 for smoke detectors and is TÜV and CE certified. The PC+ABS plastic construction in white ensures durability and long-term reliability.

BASIC SPECIFICATIONS

Sensor type: photoelectric split-spectrum

Period sampling: 9 seconds

Alarm threshold: 0.2-0.3 dB/m

Alarm volume: ≥ 85 dB(A) at 3 meters

Wireless frequency: 868 MHz

Signal range: up to 1000 meters (free space)

Maximum number of connected units: 24 units

Power supply: 3V lithium battery CR123A (non-replaceable)

Battery life: 10 years

Consumption: ≤ 15 µA (monitoring), ≤ 35 mA (alarm)

Operating temperature: -10 to +55 °C

Operating humidity: ≤ 95% RH (non-condensing)

Dimensions: Ø81.5 × 51.6 mm

Weight: 110 grams