Dahua HY-SA21A-W2(868) Wireless Smoke Alarm Category_Office Software power off automatically when no

power off automatically when no signal

Tough 4mm carbon steel cable resists cutting

Make it easy for all to print with one common driver

HP 3-year NBD Response Onsite w/Accidental Damage Protection Notebook HW Support Warranty UC279E

•Invisible receiver compartment

Dahua HY-SA21A-W2(868) Wireless Smoke Alarm Category_Office Software power off automatically when noDahua HY SA21A W2(868) Wireless Smoke Alarm 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