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DHI-HY-SA21A-W2(868) Smoke Detector (DHALARM17)

DHI-HY-SA21A-W2(868) Smoke Detector 
 
Wireless Smoke Alarm 
 
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 board design 
Low battery warning signal 
 
 
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