These explosionproof and flameproof designs do not need to be used with an intrinsic safety barrier.
They cover a -166° to +68°F. dewpoint measurement range and are accurate to ±1.8°F. dewpoint. The instruments comprise heavy-duty process type NEMA 4 / IP66, weatherproof aluminum epoxy-coated housing with 1/2-in. NPT dual conduit entry fittings and 3/4 to 16-in. stainless steel mounting thread.