The Potter PCVS-2 PCVS Series Control Valve Supervisory Switch is a top-quality product designed to provide reliable and efficient performance. This double switch is perfect for use in fire alarms, fire protection equipment, and other facility maintenance and safety applications. It is made by the reputable brand Pötter and has a model number of PCVS-2. With its high-quality construction and advanced features, this control valve supervisory switch is a great choice for anyone in need of a reliable and efficient product. It is easy to install and use, and is sure to provide optimal performance for an extended period of time. Whether you're looking for a replacement part or upgrading your current system, the Potter PCVS-2 PCVS Series Control Valve Supervisory Switch is an excellent choice.