DL manuals Home Protector Intercom System 61859 User Manual Home Protector 61859 User Manual - page 13 12345678910111213141516171819202122232425262728293031323334353637 Page of 37 Go Download Print this page Bookmark us 2. If there is no Door Viewer you will need to drill a suitable hole, using a 5/8" (7mm) drill bit. 3. Peel off the adhesive cover on one side of the adhesive tape and attach it to the back of the doorbell unit. Then peel off the adhesive cover. 13 « ‹ Prev10111213141516Next › »