Methane, Propane or Hydrogen Gas Detection The GD-6 is a versatile, easy-to-use device that allows you to select between methane, propane or hydrogen gas detection. Combustible gas detectors will respond to a wide range of hydrocarbons, including aerosol sprays, cleaning solvents, paint thinner and other common volatile organic compounds. This low voltage detector provides automatic feedback and fan or valve control that can help reduce combustible gas concentrations in parking garages, battery rooms, maintenance facilities, and other locations that require combustible gas detection. Selectable options include: Target Gas: Methane (NG), Propane (LP) or Hydrogen (H2) Output: Fan relay, Alarm relay and 4-20mA current loop Controls: Digital display (0-50% LEL), buzzer, fan delay, fan minimum runtime Installation Mounts on a standard 4" x 4" electrical box 5 A SPDT fan relay controls valves, louvers or exhaust fans 0.5 A N.O. or N.C alarm relay connects to warning devices or control panels 4-20mA current loop - compatible with the Macurco DVP-120 Control Panel Factory calibrated Other Features Supervised system design: detector problem will cause the fan & alarm relay to activate Optional calibration kit allows the GD-6 to be field tested and calibrated ETL Listed to UL 61010-1, CAN/CSA C22.2 No 61010-1