ICON PLF Magnetic Float Level Switch Assembly provides liquid level detection up to 5 feet with 1-8 level switch points and a compact junction box for wiring termination. This all plastic level switch package is selected for day tank, skid or machine, cooling tower, waste sump or process tank applications, and can be connected directly to a PLC or relay controller. It makes a perfect on | off switch for pumps or valves and can be used to completely automate your tank. The PLF is only suitable for non-viscous and non-coating liquids.