Model number: ST-799WRS-4
ST-799WRS-4 | Professional Quad-Split Wireless Kit for HGVs & Campervans
Let’s be honest—wiring a 12-metre lorry or a tidy campervan is a job nobody wants. You need to see your blind spots, but you can’t afford to waste a whole day stripping the cab and running cables through a greasy chassis. This 7-inch Quad-Split system was built to fix exactly that.
This isn't some flimsy gadget; it’s a proper, heavy-duty bit of kit. Whether you’re navigating tight city streets in a rigid truck or squeezing into a narrow pitch in your camper, you can see all four corners of the vehicle on one screen. The digital link is rock-solid—it won’t flicker or drop out when you pass other lorries on the motorway. Plus, with the built-in DVR recording all four angles, you’ve got the footage ready if a "cash-for-crash" scammer comes your way. It’s a no-nonsense tool that lets you see what you're doing without the faff of a complicated install.
360° Visibility on One Screen The Quad Split monitor allows you to view up to four cameras at once. You can cover your rear, both side blind spots, and even the front—giving you total visibility when navigating tight city streets or busy loading bays.
Rock-Solid Link for Long Lorries No more flickering or signal drops. The encrypted digital connection stays steady even on 12-metre lorries, and it won’t pick up interference from other trucks or devices when you’re on the motorway.
No Faffing with Cables Perfect for Campervans and high-spec cabs. Since it’s wireless, you don’t have to rip up the tidy interior or drill through the dash to run metres of video cable. It’s a clean, fast install that gets you back on the road in no time.
4-Channel Evidence for Insurance The built-in DVR records all four channels in 1080P to an SD card. In the event of a "cash-for-crash" scam or a side-swipe, you’ve got the HD footage ready to protect your insurance premium and your license.
7" IPS High-Brightness Display: 1000cd/m² sunlight-readable screen with 1024x600 resolution.
Smart Night Vision: Equipped with 18 High-Power IR LEDs and an Intelligent IR-Cut Filter. It delivers crisp color images in low-light environments and automatically switches to high-contrast infrared mode in total darkness, ensuring safe maneuvering in unlit campsites.
Wide Voltage Integration: Compatible with DC 12V - 32V power systems, ideal for everything from passenger vans to heavy-duty tractors.
No-Lag Transmission: Real-time 30FPS video with an effective range of up to 200m (Open Area) and a guaranteed 40m-70m (Vehicle Installation) stable link.
| Category | Parameter |
|---|---|
| Screen Size | 7" IPS AHD 1080p |
| Resolution | 1024*600*RGB |
| Video Input | 4 ways Channel Video |
| Auido input | 1 Channel Audio |
| Display Modes | Single, dual, triple, quad split |
| Recording Format | Loop recording with SD card support |
| TV System | PAL/NTSC |
| Power supply | DC 12-32V |
| Power Consumption | 7W |
| Screen ratio | 16:9 |
| Brightness | 1000cd/m2 |
| Operating Frequency | 2.4G Digital wireless |
| Video Decode | H.264 |
| OSD menu | Yes |
| Connector | Power lead with lock |
| Operating Temperature | -30℃~70℃, RH 95% MAX |
| Accessories | User manual/Power cable/Sunshade/Bracket |
| Image Sensor | 1/2.9" CMOS sensor |
| Resolution | AHD 1080P |
| Effective Pixels | 1920(H) x 1080(V) |
| TV System | PAL/NTSC |
| Viewing angle | 120 Degree |
| Power supply | DC 12-32V |
| Waterproof Level | IP69K |
| IR lights | 18Pcs |
| Transmission Distance | 200M(Open area)/40-70M(Installed on-Vehicle) |
| Video Decode | H.264 |
| Power Consumption | <3W |
| Maximum current | <250mA |
| Minimum Illumination | 0.1 Lux (day), 0 Lux (with IR) |
| Video Output | 1.0 Vp-p/75 Ohm |
| IR cut | Yes |
| Connector | Power lead with lock |
| Body Housing | Zinc alloy housing |
| Operating Temperature | -30℃~70℃, RH 95% MAX |


Versatile Digital Wireless Deployments: From Highway Logistics to Farm Fields
Agricultural Slurry Spreaders & Fertilizers: The perfect zero-cable safety solution for wide-chassis slurry tankers and muck spreaders. The robust digital wireless transmission effortlessly penetrates heavy steel tanks, providing the tractor operator with a clear, real-time rear view to monitor spreading width and prevent backing collisions with fences or gateposts.
Farm Tractors & Agricultural Trailers: Eliminates the hassle of running long, complex video cables across the trailer hitch. Whether hauling grain, livestock, or silage, the camera mounts securely to the rear of the trailer, sending an instantaneous 1080P feed directly to the in-cab monitor without signaling degradation during tight vehicle articulation.
Commercial Freight & Semi-Trailers: Streamlines fleet operations for logistics companies using interchangeable trailers. Since the transmission is entirely digital wireless, any tractor unit can instantly pair with any equipped trailer, significantly reducing vehicle coupling time and eliminating wear-and-tear on physical aviation connectors.
Livestock Transport & Horseboxes: Provides farmers and transport operators with uninterrupted real-time surveillance of the rear perimeter or internal livestock bays, ensuring animal safety and precise maneuvering on unpaved, high-vibration rural roads.
On-Site Construction Dump Trucks: Built to withstand severe terrain shocks and dust clouds. The integrated DVR recording functions as an essential accountability tool, capturing continuous footage of loading, transit, and dumping operations for fleet safety compliance

Q: Does "Quad Split" mean I have to see all 4 cameras at once?
A: Not necessarily. You can choose to see one camera full-screen, two in split-view, or all four at once. It’s completely flexible depending on whether you’re cruising or parking.
Q: Will the signal hold up with four cameras running?
A: Yes. We use a high-bandwidth digital frequency that handles all four feeds without lag or screen jumping, even when you’re passing other heavy vehicles on the motorway.
Q: How much "faff" is the installation really?
A: Very little compared to a wired system. You just need to power the cameras and the monitor. You’ll save hours of work by not having to run video cables through the chassis or under the carpets.
Q: Is the recording quality good enough for insurance?
A: Absolutely. It records in 1080P HD. If you’re involved in an incident, the footage is clear enough to show number plates and exactly who was at fault, which is vital for protecting your "no claims" discount.

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