Dwyer Instruments FSW2 series free-floating cable level switch is a mercury-free counter-weighted floating switch. Designed for the automation of pumps, filling and draining of tanks, wells, and reservoirs. The FSW2 body is free of any irregularities making it ideal for use in sewage water applications. The polypropylene body consists of a double airtight chamber with high-pressure melted polypropylene seals to protect against infiltration.
High reliability
Mercury-free
Seamless installation
Counter-weighted body