Dahua-ARD311-W Wireless Door/Window Contact-Dubai
ARD311-W
Wireless Door/Window Contact
> Door/Window sensor, 25-40mm motion distance
> Bi-directional communication
> Up to 700m transmission distance (open space/no interference)
> 3 years battery life
> Tamper switch equipped
> Screw or glue to mount
> ABS plastic
> Bi-directional communication
> Up to 700m transmission distance (open space/no interference)
> 3 years battery life
> Tamper switch equipped
> Screw or glue to mount
> ABS plastic