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Electronic control circuit monitors battery voltage while system is in inverter mode and commands gate operators to open when battery power reaches critical levels
Anti-tailgating feature
SL-1301-EAQ/R
Non-volatile memory retains codes during power loss
DoorBird D21DKH Video Intercom for Multi Tenant Buildings (Stainless) Viking Solar Slide Gate Opener Electronic control circuit monitors batteryCLICK HERE FOR BROCHURE CLICK HERE FOR MANUAL Doorbird 4260423870871 Commercial Smart Video Intercom (This item is not returnable) DoorBird IP Video Door Station D21DKH for multi tenant buildings, stainless steel V2A, brushed, display module, keypad module. DoorBird is the smart solution for your house entrance. Simply connect your DoorBird IP Video Door Station to your smartphone and talk to your visitor anywhere you are. The IP Video Door Station
US$ 204.97
US$ 20.79
