Dahua HY-SA30A standalone smoke alarm, 85 dB, built-in battery
Price: 50,60 ₾/pcs · Dahua
Sold by the piece. Next-day delivery in Tbilisi, 2–3 days to the regions.
Description
The Dahua HY-SA30A is a standalone smoke alarm with a built-in battery, so installation comes down to fixing it to the ceiling, with no wiring and no battery to insert. 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; silence lasts about 12 minutes. One button serves for both test and silence, the green LED confirms operation once a minute, and the unit warns by itself when the battery runs low. In a room up to 8 m high it covers 20–40 m², for a bedroom, living room or office.
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