EDPS-06-2-N is a series EDPS HVAC differential pressure switch is designed for pressure, vacuum, and differential pressures. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. Series EDPS models meet UL508 and are constructed of plenum rated plastics. The compact size, adjustment knob and low cost make the EDPS the perfect choice for HVAC applications. Typical applications include air filter and ventilator monitoring, industrial cooling circuits, fire-protection damper control, ventilation duct monitoring, fan heater overheating protection and heat exchanger frost protection.