Profile: National Magnetic Sensors is a designer and manufacturer of sensors. Our product line includes single level switches, multi level sensors, side mount level switches, continuous transmitters, bottle switches and drum sensors. We provide liquid level sensors and controls for a variety of industries & applications including locomotive & railroad equipments, bulk storage terminals, water treatment, marine, OEM equipments, pollution control & energy & power generation. Our multi-level sensors are a single tubular sensor that may contain multiple discreet sealed contacts and this design enable to perform several functions with one piece of equipment & it is available in stainless steel, brass & polypropylene. Our single level switches are a simple solution for liquid level switching and indication & they are typically used for high & low level conditions. Our side mount level switches includes counter balanced float arms, which allow them to function in low specific gravity fluids.