The TVH-P20GNMM is a TopWorx valve position switchbox with a 316 stainless steel base and lid. It is rated intrinsically safe.
Position sensing is by two SPDT switches rated 3A max. The switchbox has a standard 90° visual indicator showing green for open and red for closed, a NAMUR 316 stainless steel shaft, two M20 conduit entries and silicone O-rings.