Dwyer DXW-11-153-1 is a wet/wet differential pressure switch with an operating temperature range of 30 to 140°F (-1 to 60°C). It is housed in a weatherproof UL type 4X (IP65) enclosure, made of aluminum, polycarbonate, and 300 SS. The switch has a maximum static pressure of 200 psig (13.8 bar) and a maximum differential pressure of 1.25 times the highest set point. It has a 1/4" NPT female process connection and a repeatability of ±2% of full range. The electrical rating is 5 A @ 125/250 VAC, 5 A res. @ 30 VDC. The switch type is SPDT snap switch and its set point is externally adjustable. The device is intended for use with compatible gases and liquids and can be mounted with ports on a horizontal plane with up to ±10° orientation. It has a 0.871" diameter hole for a 1/2" conduit fitting and can withstand vibration up to 2.5 Gs, 5 to 500 Hz. It is designed for indoor and outdoor use in an environment with a pollution degree of 2.