The cheapest four-camera wired kit here, for owners willing to run cables for a lag-free view.
Amazon $199.99The eRapta ER0202 Wired 7-inch 4-Camera rates 4.1 among wired RV backup cameras; the Yakry Y33 Magnetic Solar Wireless rates 3.4 among wireless ones. The Yakry Y33 Magnetic Solar Wireless costs $60 less ($139.99 vs $199.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

A no-install camera for travel trailers and trucks you swap between, with a big battery. Check that 65 ft covers your rig.
Amazon $139.99Scores side by side
These two sit in different type classes (wired and wireless), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | eRapta ER0202 Wired 7-inch 4-Camera | Yakry Y33 Magnetic Solar Wireless |
|---|---|---|
| Overall rating | 4.1/5 | 3.4/5 |
| Value 25% | 100 $50 per camera ($199.99, 4 cameras) | 55 $139.99 per camera ($139.99, 1 camera) |
| Resolution 20% | 62 1,080p camera | 85 1,296p camera |
| Field of view 10% | 50 field of view not published (neutral score used) | 50 field of view not published (neutral score used) |
| Monitor 10% | 47 7 in monitor | 47 7 in monitor |
| Expandability 5% | 100 takes up to 4 cameras | 50 camera limit not published (neutral score used) |
| Weatherproofing 10% | 100 IP69 camera | 50 waterproof rating not published (neutral score used) |
| Features 10% | 35 records to a memory card | 0 none of the listed features |
| Signal 5% | 100 wired video link | 50 no on-vehicle range published (65 ft claim not scored) (neutral score used) |
| Warranty 5% | 50 2-year warranty | 50 2-year warranty |
Specifications
| eRapta ER0202 Wired 7-inch 4-Camera | Yakry Y33 Magnetic Solar Wireless | |
|---|---|---|
| Cameras | ||
| Cameras included | 4 | 1 |
| Cameras supported | 4 | - |
| Camera resolution | 1,080p | 1,296p |
| Night vision | Infrared | - |
| Waterproof rating | IP69 | - |
| Camera power | Vehicle 12 V | Battery with solar panel |
| Microphone | No | No |
| Monitor | ||
| Size | 7 in | 7 in |
| Resolution | 1920x1080 | - |
| Touchscreen | No | No |
| Recording | Yes | No |
| Input voltage | 12-24V | - |
| Link | ||
| Link | Wired | Wireless |
| Stated range (not scored) | - | 65 ft (maker claim) |
| RV prewire fit | No | No |
| Support | ||
| Warranty | 2 years | 2 years |