Voyager WVOS541 Wireless Security Camera System with Built-in Speaker, 5.6" TFT LCD Monitor, 1/3" CMOS Sensor, Waterproof & Auto-Pairing, Supports 4 Cameras - Ideal for Home, Office, and Outdoor Surveillance

I drive a 24-foot class C motor home, often pulling a small towed car. One of more uncomfortable maneuvers I make in that configuration is a lane change in fairly heavy traffic, often at freeway speeds. With just my side mirrors (the back of the motor home is closed -- no window), I'm never really sure if I have sufficient clearance to move over one lane in traffic. With this system, the camera mounted on the roof at the back of the motor home, I can see clearly at a glance if I have enough room or not. The view is much better than just a rear-view mirror would be because you're looking DOWN on the traffic back there!When I first connected the camera (per instructions, using the rear marker light circuit for my 12v power) I had intermittent signal to the monitor. In fact, I was getting a "No SIgnal" message more often than a picture. I thought the system was worthless and was considering returning it. But thanks to excellent customer tech support and advice, along with a lot of troubleshooting and investigating with a digital voltmeter, I finally determined that with the engine running (alternator), the voltage in that circuit varied between 11.2 and 11.7 volts. Maybe because my marker lights are LEDs? Regardless, I finally ran power to the camera from a different 12v circuit, and the system has performed perfectly throughout a recent 5,500 mile trip. Never once did I fail to have a clear picture.I highly recommend this Voyager system, and ASA Electronics will stand behind it. I feel much safer when towing in traffic than ever before.