Economical, general purpose gas detector or controller. These detectors provide an early warning
of hazardous concentrations of Ammonia, Propane, Methane, Nitrogen Dioxide, Hydrogen and other gases.


Space ABS enclosure



Wall Mount Explosion Proof
Available for CO, Toxic,
and Combustible Gas Detectors
Electrochemical and Catalytic
sensors only.


To sense and transmit gas concentrations to any compatible electronic analog control, DDC/PLC controller or automation system. Also provides a visible and audible alarm for high concentrations of gas. Some areas in which the unit may be used include: parking and maintenance garages, ventilation systems, hazardous storage areas, factory work areas, repair facilities, mines and tunnels, arenas and swimming pools, chiller rooms.


  • Monitors Toxic and Combustible Gases
  • Field replaceable Sensor Module allows for use of spare modules and/or factory calibration without down time
  • Optional LCD for displaying level
  • Optional Audible Alarm
  • Microprocessor based (12 bit accuracy)
  • System configuration saved in non-volatile memory
  • Optional relays can be configured with normally open and normally closed contacts
  • Please note, calibration will be required annually and may be necessary more frequently depending on the nature of the application.



SPECIFICATIONS TOXIC - Product # AGD COMBUSTIBLE GASES - Product#CGD
Gas Detected Ammonia (NH3) Nitrogen Dioxide (NO2), etc. Propane, Methane, ISO-Butane, Hydrogen, etc.
Range See Product ordering Information See Product Ordering Information
Area Coverage 160 m2 (1,500 sq. ft.)/NO2 700 m2 (7,500 sq. ft.) 160 m2 (1,500 sq. ft.)
Sensing Element Solid State and/or Electrochemical Solid State or Catalytic
Calibration Accuracy 0.5% (12 bit accuracy)
Sensor Accuracy For sensor specifications, see Product Ordering Information
Operating Temperature 0 - 40 (32F  - 104F) (call for other temperature applications)
Humidity Range 0 - 95%
Manufacturing Process ISO 9002 certified
Relays (1 or 2) DPDT, N.O., or N.C. Contacts rated 5A @ 24 VDC.
(two relays not available with 4 - 20mA output)
Input 24 - 38 VDC / 17 - 27 VAC
Output Analog Signal 4 - 20mA
Audible Alarm (optional) 65dB @ 1 m (3 ft)
LCD Display (optional) LCD for displaying level
LEDs Green and yellow LEDs for normal and failure indication / 10 step LED display
Field Calibration Calibration, applying calibration gas standards