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You are here: Home / Products / Fume Hood Controllers / HMS-1655 Fume Hood Controller

HMS-1655 Fume Hood Controller

  • HMS-1655 Fume Hood Controller
  • HMS-1655 Fume Hood Controller
  • HMS-1655 Fume Hood Controller
  • HMS-1655 Fume Hood Controller
HMS-1655 Fume Hood ControllerHMS-1655 Fume Hood ControllerHMS-1655 Fume Hood ControllerHMS-1655 Fume Hood Controller

Triatek’s HMS-1655 Fume Hood Controller regulates and monitors a fume hood’s airflow and exhaust, providing scientists with confidence that they are protected from toxic chemicals, vapors, and dusts during experiments.

It utilizes a closed-loop sensing system and quickly alerts users if conditions become unsafe.

Watch the video >

The HMS-1655 also features Triatek’s signature Safety Halo™  – a glowing, color-coded edge lighting that provides 180° of status visibility, so that researchers can monitor multiple fume hoods from across the lab with a simple glance.

This fume hood controller has both audible and visual alarms and a user-friendly touchscreen with bold, modern graphics that simultaneously displays:

  • Hood status
  • Sash height
  • Exhaust flow
  • Face velocity
  • Time and date

The HMS-1655 is ideal for university laboratories, crime labs, corporate research facilities, and any other setting with fume hoods. The HMS-1655 easily integrates into any building automation system. Triatek offers the HMS-1655 for the BACnet® and Metasys® N2 networks.

*The HMS-1655L model has been discontinued as of August 16, 2022. Read the official notice here.



  • Features
  • Description
  • Specifications
  • Related Products
  • BACnet® and Metasys N2® compatible
  • BTL Listed®
  • Safety Halo™ edge lighting
  • User-friendly touchscreen with intuitive menus
  • Bold, modern graphics
  • Visual and audible alarms
  • Easy to install and customize
  • Password protection with four access levels
  • Non-volatile memory
  • Multiple alarms for sidewall and sash position sensors
  • Zone presence sensor support
  • Multi-trigger emergency purge option
  • Works seamlessly with Triatek’s Venturi valves, as well as other valves in the industry for maximum convenience and compatibility with your building automation system
  • Available in plastic surface mount

Triatek’s HMS-1655 Fume Hood Controller regulates and monitors a fume hood’s airflow and exhaust, providing scientists with confidence that they are protected from toxic chemicals, vapors, and dusts during experiments.

It utilizes a closed-loop sensing system and quickly alerts users if conditions become unsafe.

The HMS-1655 also features Triatek’s signature Safety Halo™  – a glowing, color-coded edge lighting that provides 180° of status visibility, so that researchers can monitor multiple fume hoods from across the lab with a simple glance.

This fume hood controller has both audible and visual alarms and a user-friendly touchscreen with bold, modern graphics that simultaneously displays:

  • Hood status
  • Sash height
  • Exhaust flow
  • Face velocity
  • Time and date

The HMS-1655 is ideal for university laboratories, crime labs, corporate research facilities, and any other setting with fume hoods. The HMS-1655 easily integrates into any building automation system. Triatek offers the HMS-1655 for the BACnet® and Metasys® N2 networks.

  • Face Velocity Range0-200 fpm
  • Alarm Range0-200 fpm
  • Display Range0-200 fpm
  • Accuracy±2 fpm at 60-140 fpm, ±5 fpm outside this range
  • Sidewall SensorDigital ultra-low differential pressure
  • Sash Position SensorVertical height up to 43”
  • Control Resolution±2 fpm
  • Control CapabilitySash position with sidewall sensing 
feedback for closed-loop Control
  • Analog Inputs - HMS-16554 universal (4-20mA, 0-5Vdc, 0-10Vdc)
  • 2 thermistor inputs (NTC Type 2 or 3, 10KΩ at 25°C
  • Analog Outputs - HMS-16554 universal (4-20mA, 0-5Vdc, 0-10Vdc)
  • Analog Inputs - HMS-1655L4 universal (4-20mA, 0-5Vdc, 0-10Vdc)
  • Analog Outputs - HMS-1655L4 voltage (0-5Vdc, 0-10Vdc)
  • Digital Inputs4 active-high or active-low (0-5Vdc or 0-24Vdc)
  • Relay Outputs4 sets of N.O. contacts (1A at 24Vdc)
  • Communication Protocols - HMS-1655BACnet® MS/TP, Metasys® N2 open
  • Communication Protocols - HMS-1655LLonWorks® FTT-10A
  • Operating Temperature32° to 125° F operating
  • Operating Humidity10-95% relative humidity, non-condensing
  • Exterior DimensionsPlastic housing: 3” W x 5” H x 1.13” D
  • Mounting StylesSurface (no cutout required)
  • Agency Listings - HMS-1655BTL Listing, ETL Listing (UL916), 
FCC Part 15, ICES-003
  • Agency Listings - HMS-1655LETL Listing (UL916), FCC Part 15
  • Power Requirements24Vac ±10%, 30VA
  • Password ProtectionUp to 10 user passwords with 4 access levels
  • Display18-bit (262K) color TFT, 3.2” diagonal, 
resistive touchscreen, 2500 cd/m²
  • Alarm IndicationSafety Halo™ 180° visual indication
  • Industry standard status colors with action icons
  • Alarm SilenceTouchscreen, auto-reset
  • HMS-1655 LITE Fume Hood MonitorHMS-1655 LITE Fume Hood Monitor

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Georgia Tech Carbon Neutral Energy Solutions LaboratoryGeorgia Tech Carbon Neutral Energy Solutions Laboratory

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About Triatek

Since 1985 Triatek has been on the forefront of designing and manufacturing innovative airflow solutions for critical environments. Headquartered near Atlanta, Georgia, Triatek provides end-to-end solutions for healthcare facilities, laboratories, and municipal facilities around the world. Our … Learn more »

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