The VR-41’s design allows its use in a wide cross section of light and medium materials, even those that are extremely light and fluffy. Perfect for top mount locations, the VR-41 comes in a wide variety of lengths from 13″ and extends to 13′. With rigid 1″ pipe extensions, the VR-41 also offers stainless steel or galvanized steel based on what it will be used for. It can be custom made at the BinMaster’s factory based on client needs, and like the VR-21, has a special single-rod probe design with a sword-shaped blade that prevents bridging of materials making it a better choice for tuning fork designs, as it allows materials to easily flow by, preventing build up against the blade. Additional features include a self-cleaning sensor, a switch that is selectable having both low fail safe and auto sensing power supplies that cater to 20–250V AC/DC.