The KOBOLD RFS level switch is a cost-effective liquid level switch for mounting in the side walls of tanks. The RFS Series level switch is constructed in stainless steel for maximum media compatibility. The straightforward design is distinguished by a small footprint, sturdy construction, and a high-capacity reed switch. The stainless steel float contains a magnet that activates a sealed reed contact as the liquid level rises above or drops below the switch installation point. The contact function may be selected as either normally open (N/O) or normally closed (N/C) by rotating the switch 180 degrees about its axis. This simple design makes the KOBOLD RFS affordable and maintenance-free.