Tador, Codeline CD-200-AV, Stock# CD-200-AV Communication Cable It has ab expansive bolt

It has ab expansive bolt size of 1/4"-20 for use with caulking anchors

The durable NEC SL1100 ~ 12-Button Full-Duplex Backlit Display Digital Telephone - WHITE  (1100060) IP4WW-12TXH-B-TEL (NEW Part# BE110269)

and average readings

4GHz and 5GHz bands

Tador, Codeline CD-200-AV, Stock# CD-200-AV Communication Cable It has ab expansive boltProduct features Tador's Codeline CD 200 AV opens the door panel with a telephone by connecting it to a telephone line or the door panel can also be open by using an access code with keypad. Codeline CD 200 AV has an anti vandal aluminum panel with metal push button and camera availability. It can either have a Flush or Surface mount installation. NEW IN THE BOX One Year Warranty