Dahua HY-SA40A standalone smoke alarm, 85 dB, IR silence
Price: 36,54 ₾/pcs · Dahua
Sold by the piece. Next-day delivery in Tbilisi, 2–3 days to the regions.
Description
The Dahua HY-SA40A is a standalone smoke alarm with a sealed lithium battery that goes up in a flat, house or office with no wiring whatsoever. The split-spectrum photoelectric sensor samples every 9 seconds and at a smoke density of 0.2–0.3 dB/m sounds an 85 dB siren (at 3 m) and lights the red indicator; in a room up to 8 m high one unit covers 20–40 m². Silence lasts 9 minutes and is available both from the button and from an infrared remote, which is handy with high ceilings. The green LED confirms operation once a minute, the red one flags a fault twice a minute, and the unit reports a low battery on its own.
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