Dahua DHI-HY-SA21A-W2(868) Wireless Smoke Alarm

Dahua DHI-HY-SA21A-W2(868) — DHI-HY-SA21A-W2(868) Wireless Smoke Alarm. Key Features & Specifications Split-spectrum sensor technology Test and silence features in one single button Loud sound output over 85 dB(A) at 3 meters Low quiescent current consumption Surface-mount device (SMD) circuit b