The RVS-125 displays distance, accurate to within one-inch, allowing the driver to identify the precise location of an obstruction when backing up a tractor-trailer. All done simply, reliably and wirelessly! SenseStat is a unique digitally-encoded wireless obstacle detection sensor system (ODSS). SenseStat uses wireless backup sensor technology to provide back-up assistance for all types of commercial vehicles including single unit trucks, trucks with trailers, off-road, lift truck and construction vehicles. It can also be used in a RV sensor application. The SenseStat wireless backup sensor system provides the driver both audible and visual warning indicators, the combination of which creates a proximity sensor system that provides a greater means to avoid unnecessary backing accidents. The audible alarm has three adjustable sound pressure levels. The wireless ECU is completely waterproof and includes multiple antenna installation options. With built-in stopline adjustment you can easily adjust the stopping distance (zero point) away from the actual bumper by whatever distance you need. Use the item options to choose between standard mounting and the SE mount. The SenseStat SE offers a rugged housing for the system's four sensors. These heavy duty shock-absorbent housings adapt to a wide variety of vehicles requiring a vertical or horizontal installation. Protect your systems against rough handling, roadwear, construction sites and other conditions that might affect your investment in safety.