Dahua Wireless Smoke Alarm HY-SA21A-W2
DHI-HY-SA21A-433 is a wireless smoke alarm designed to provide early fire detection and immediate audible and visual alerts. Using dual photoelectric smoke sensing chamber technology, it offers high sensitivity to smoke while reducing false alarms. The detector operates independently on battery power and can send real-time alarm notifications through the Dahua AirShield system and DMSS application, making it ideal for homes, apartments, villas, and small commercial premises. Product Datasheet
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