With the access control module VZ 1730/65, the door station VT 1730/51 can be expanded with access control. The access control module is easy to integrate into the door station. The system can be easily programmed and expanded using the included transponder keys. Product brief description:: • For installation in to-door station VT1730/51 • Transponder key module • Includes 1x MAIN, 1x DELETE, 3x USER KEYS Brand: Grothe Manufacturer's article number: 74345 Type: Call routing module VZ 1730/67 Product description, detailed: • Dimensions: 40 x 32 x 4 mm • Article type: access control module VZ 1730/65 • Series: 1730/501 video intercom door phone system • Device type: access control module • Installation: for installation in a door station