Review on Enhanced eRapta 3.0 Backup Camera System with 7'' Monitor: RV Trucks Side/Front/Rear View Back Up Camera DVR System, IP69 Waterproof, 4 Cameras 4 Channels - Prevent Blind Spots, EHD4 by Jay Ngo

Installed on our van. Loved it initially but the interface is almost impossible to use. Serious lag time after each key press. Never sure if it even registered the buttons because they don't click or click. Sometimes they don't even turn off as expected when the auxiliary ignition is off. Cameras aren't that good when they're too hot, they display a whiter screen where you can't even tell what's going on. The side cameras turn red at night and the picture is not as clear. It's ok for what it takes, but I'd recommend going with a higher quality device that might have a phone app.