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Macurco GD-12 Gray Housing-Combustible Fixed Gas Detector & Controller
Macurco GD-12 Gray Housing-Combustible Fixed Gas Detector & Controller

Macurco GD-12 Gray Housing-Combustible Fixed Gas Detector & Controller

Manufacturer Part#:70-2900-0021-1
Our Part#:70-2900-0021-1
Stock Status: Call for Availability
Retail Price:$906.23
Your Savings:$317.18(35%)
Your Price:$589.05









Feature 5


Feature 7

Detection Type:Methane,Propane,Hydrogen|Product Type:Detector|Input Voltage:100-240VAC|Intended Use:Commercial/Industrial|Connection Type:Building Wiring,System|Product Status:Current|Battery Backup:No


  • Low-level meter capable of displaying from 0-50% LEL
  • Selectable target gas - Methane (NG), Propane (LP) or Hydrogen (H2)
  • Selectable fan and alarm relay activation
  • 5A SPDT fan relay controls valves, louvers or exhaust fans
  • 0.5A 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
  • Supervised system design: detector problem will cause relay activation
  • Mounts on a standard 4" x 4" electrical box
  • Calibration Kit Available. One screw allows access for calibration or gas test
  • ETL Listed to UL 61010-1, CAN/CSA C22.2 No 61010-1


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).


Combustible Gas Range 0-50% LEL
Default Relay Settings Fan - 10% LEL
Alarm - 20% LEL
Power 100-240VAC (50 to 60Hz)
Connections Plugs/Terminals
Current 1.0A max
Fan Relay 5A, 240VAC, pilot duty, SPDT, latching or non-latching
Fan Relay Actuation selectable at diS (disable) 3, 4, 5, 6, 7, 8, 9, 10 (default),11, 12, 13, 14, 15, 16, 17, 18, 19, 20% LEL
Fan Delay Settings 0, 1, 3 (default), 5 and 10 minutes
Fan Min. Runtime Settings 0 (default), 3, 5, 10 or 15 minutes
Alarm Relay [email protected], 60VA
Alarm Relay Actuation Selectable N.O. (default) or N.C.
Alarm Relay Settings diS, 5, 10, 15, 20 (default), 25% LEL
Current Loop 4-20 mA for 0-50% LEL, selectable to off or on (default)
Buzzer 85 dBA at 10ft settable to off (default) or on
Digital Display 3 digit LED selectable to off (default) or on
Operating Environment 0°F to 125°F (-18°C to 52°C). 10 to 90% RH
Operating Altitude Up to 5,000m (16,404 ft)
Mounting Box (not included) 4" x 4" electrical box
Size 4½" x 4" x 2¾" (11.4 x 10.2 x 7 cm)
Shipping Weight 1 pound (0.45 kg)
Color Dark Gray
Accessories designed for use with this product - To add any of these accessories to your order, simply fill in the quantity you want and click the large "Add to Cart" button above

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