SCH-PSB - Differential Pressure Switch for HVAC

Brand: KOBOLD Instruments, Inc

KOBOLD’s SCH-PSB is an adjustable differential pressure switch for monitoring overpressure, vacuum, and differential pressure of air or other non-combustible, non-aggressive gases in low-pressure HVAC systems.

The switching pressure may be adjusted without a pressure gauge using a scaled adjustment knob. The switching differential is easily adjusted using a screwdriver.
  • Monitoring of Air Filters and Ventilators
  • Monitoring Industrial Cooling Air Circuits
  • Overheating Protection for Heater Fans
  • Monitoring Flows in Ventilation Ducts
  • Controlling Air and Fire-Protection Flaps
  • Frost Protection for Heat Exchangers


Measuring Ranges

  • 20 to 300 Pa
  • 50 to 500 Pa
  • 200 to 1000 Pa

Maximum Pressure

  • 10 kPa (1.45 psi) for All Ranges

Media and Ambient Temperature Range

  • -4° F to 158° F


  • Hose Barb


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