The Macurco GD-12 is a line voltage, dual relay Combustible Gas detector, controller and transducer. The GD-12 utilizes an internal switching power supply that is capable of using line voltage between 100 and 240VAC and 50-60Hz. The GD-12 has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the concentration of Combustible Gas and provide feedback and automatic exhaust fan, louver or valve control to help reduce gas concentrations in parking garages, battery rooms or other commercial applications.
The Macurco GD-12 features a detectable explosive gas range of 0-50% LEL with (default) relay settings of 10% LEL for fans and 20% LEL for alarm. Detectable explosive gases are Methane (NG), Propane (LP) or Hydrogen (H2).