Parker's LLSS Refrigerant Float Switch offers proven and reliable operation by using a mechanical switch and magnet mechanism. This reliability will reduce complexity, reduce replacement costs and offer enhanced system safety. The LLSS uses corrosion resistant components including a stainless-steel float chamber to ensure a long lifetime in the harsh environments of industrial refrigeration.Product Features:Suitable for ammonia R-507, R-134a and other common refrigerants304L stainless steel float chamber assemblyUV resistant and transparent switch housingMagnetically actuated switch (single pole double throw)Hermetically sealed switchComplete assembly weighs 3.08kg (6.8lbs)Switch assemblies are compatible with Refrigerating Specialties liquid level models LL, LLS and LLAComplies with Pressure Equipment Directive (PED) 2014/68/EUUL listed switch assembly available