Review on 📸 Universal Mount Front Rear Camera – Marine Grade Waterproof with Distance Scale Lines & Night Vision LED Lights – Pyle PLCM38FRV by Jim Cox

Bought 3 groups of 3 cameras (maximum allowed by this seller) The first group had a 12v red line with two wires from the reverse and Scaling controlled lines. I had to login to activate it. The second group had a black ground wire with two wires for reverse and scale, these had to be connected to disable. The third group had both leads connected to the black ground wire, but both were disabled. You will need to cut the wire if you want lines/backwards. NONE OF THE CAMERAS HAVE ANY KIND OF LED. There is no room in this tiny chamber, but they have excellent vision in LOW light. A NOTICE. They run at 3.3v, the plastic nut on the wires drops the voltage from 12v to 3.3v and runs very warm, might fail at constant power as other reviews state. By attaching them in front of and behind each tire (8 total) on your RV to see the ramps move in and out of the parking space on the road curbs.