Honeywell Kromschroder DL Air Pressure Switch

  • For positive pressure, negative pressure and differential pressure
  • For air and flue gas
  • DL..AT: FM approved and UL listed
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The Honeywell Kromschroder DL..T is an Auto Reset Air Pressure Switch.


Monitoring air pressures on industrial and commercial installations.  The low pressure sensing range of this switch permits a wide range of applications.  The switch is capable of static, vacuum, or differential pressure sensing.

In Summary:

  • Switching ranges: 0.08 -60″ w.c. (.2 to 150 mbar)
  • DL..A, DL..K are used for controlling butterfly valves for air and fire dampers in firing systems, and for fan monitoring

Ask us for engineering or product support.

DL..T Air Pressure Switch, NPT version
KS84444950, DL3AT, Auto Reset, 0.12 – 1.2″ WC (0.3 – 3.0 mbar) Adjusting range

Technical Documentation

Download PDF files:

DL Gas Pressure Switches Overview

DL Gas Pressure Switches Tech Doc

Link to files:

DL Air Pressure Switches