Dwyer DPS-233-2-61 is a double bellows differential pressure switch with a temperature range of -10 to 180°F (-23 to 82°C). It has a general purpose, weatherproof or explosion-proof enclosure rating and screw terminal electrical connections. The switch is mountable vertically and has wetted material made of brass or 316SS. The pressure limit is the maximum pressure of the operating range. It has a general purpose and weatherproof process connection of 1/8" NPT female, and an explosion-proof process connection of 1/4" NPT male. The electrical rating can be found on the ordering page. The switch type can be mercury or snap, as indicated on the ordering page. It has thumbscrew set point adjustment and general purpose, weatherproof, or explosion-proof conduit connections of 1/2" hole for conduit hub (general purpose), 1/2" conduit hub (weatherproof), or 3/4" NPT female (explosion-proof).