Dwyer MVS-1 is a miniature vacuum switch that operates in a temperature range of 40 to 150°F (4 to 66°C). It has 0.187" x 0.20" spade terminals for quick disconnects, and can be mounted using #2 screws through eyelets. It is suitable for use with air or compatible fluids on the "high side". The wetted materials include a polycarbonate housing and a polyurethane diaphragm. It has a wide pressure limit and a process connection of either a smooth port or 1/8" male NPT. The switch is SPDT and can be normally open or normally closed. It has silver contacts with brass terminals and various electrical ratings depending on the pressure range. Repeatability is ±20%.