Buler brand LCD Door Peephole Viewer Camera and Monitor Low light sensitivity camera will work even in dim areas Outside camera looks like a normal peephole viewer . Easy 5 min. installation. New power saving design gives up to 1,000 views on two AA batteries Camera has a wider lens to be able to see more outside your door Larger 2.8" LCD screen with expanded viewing angle Please note: Screen stays on for only 3 seconds or as long as you have button pressed. Just keep button pressed as long as you would like to see the camera