Hansen Technologies offers a complete line of industrial quality Gas Sensors and Monitors for refrigerants and other common gases. These state-of-the-art gas sensors utilize a range of sensing technologies to suit a given application. Hansen Gas Sensors are available in several configurations to meet various application requirements.


Hansen Gas Sensors are suitable for use in industrial refrigeration engine rooms, cold storage rooms, processing rooms and truck docks, and for relief-valve vent lines. They are also suitable for use in supermarkets, and large institutional and commercial buildings. Typical gas-detection applications include Ammonia, Carbon Dioxide, Hydrocarbons, HFCs, HCFCs and CFCs.


Hansen uses a wide variety of sensing technologies including electrochemical, semiconductor and infrared sensors to selectively detect most gases. These sensors continuously determine the level of gas present in an area. The analog outputs (4-20mA or 0-10V DC) can interface with nearly any existing monitor, computer or PLC controller. 

Sensors have built-in visual and audible alarms. An auxiliary one-amp relay output is standard. A range of enclosures are offered to suit most applications. Testing and re-calibration procedures are simple.


  • Accurate, fast responding
  • Linear 4-20mA or 0-10V DC output
  • Audible alarm
  • SPDT alarm relay
  • 24V DC low voltage power
  • Long-life, replaceable sensor element
  • Optional Quick Disconnect Plug Kit and Gas Sensor Element Shield
  • CE approved

Sensor Types

  • Electrochemical: 2-3 years typical life
  • Semiconductor: 7-8 years typical life
  • Infrared: 8-10 years typical life

For More Information:

Hansen Technologies Corp.
6827 High Grove Boulevard, Burr Ridge, Illinois 60527
Phone: (630) 325-1565
Fax: (630) 325-1572
Website: www.hantech.com
E-mail: info@hantech.com