HD-11 (Discontinued)


Product Being Discontinued Effective June 30th, 2022 

HD-11 Replacement is the GD-6 Combustible Gas Monitor

The unit is designed to monitor levels of hydrogen gas in a room or a facility where hydrogen gas may be present, for example where forklifts, backup power supplies, or golf carts battery charging stations are present.

Product Downloads

Security Series Data SheetHD-11 User Manual

Frequently asked questions (FAQ's) 

View all of our product downloads here.

Key Features

  • 12-24 VAC or VDC  input
  • Flush or Surface Mount Enclosure
  • N.O. or N.C. Alarm Relay
  • N.C. Trouble/Supervisory relay
  • Low Maintenance 7-10 Year Solid-State Sensor
  • Coverage Area:  900 sq. ft.
  • Alarm Setting 10% of LEL H2

Additional information

Gases Detected

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