Dahua ASF921 Emergency Button For Opening The Door

Brand	Dahua
Manufacturer	Dahua
Model Number	ASF921

The Dahua ASF921 Emergency Button is a push button that has photoelectric control technology to prevent the mechanical failure. It also has a normally open/closed function, flexible application, and 500000 times fatigue test.

FEATURES
Dahua ASF921 Emergency Button for Opening the Door
Photoelectric control technology to prevent the mechanical failure
Use fire retardant material, convenient installation
Normally open/closed functions, flexible application
500000 times fatigue test and durability
Access control project designated accessory products
PRODUCT SPECIFICATIONS
Brand
Dahua
Item model number
ASF921
Product Type
Push button
Maximum operating temperature
55 C
Minimum operating temperature
-20 C
Application/use
Door, Access control system