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Due to Component and Supply Shortages World Wide Due to Component and Supply Shortages World Wide
Macurco GD-2B, Methane and Propane Gas Detector
Macurco GD-2B, Methane and Propane Gas Detector

Macurco GD-2B, Methane and Propane Gas Detector

Manufacturer Part#:70-2900-0005-3
Our Part#:70-2900-0005-3
Stock Status: Call for Availability
Your Price:$136.94









Feature 5


Feature 7

Detection Type:Propane,Methane|Product Type:Detector|Input Voltage:12VAC,12VDC,24VAC,24VDC|Intended Use:Commercial/Industrial|Connection Type:System|Product Status:Current|Battery Backup:No


  • Designed to meet UL standard 2075 for the Standard For Safety for Gas and Vapor Detector and Sensors
  • Sensitivity based on UL 1484 Standard for Residential Gas Detectors
  • Surface mounts to a wall using the supplied enclosure rear housing
  • Flush mounts in a 2 x 4 (1-1/2 inch deep minimum) single gang switch,or handy electrical box
  • Small, low profile, attractive unit in a white plastic case
  • Can be self-restoring or latching
  • Test & Reset switch conducts internal tests and actuates alarm relay
  • Solid State Electronic sensors: no maintenance or recalibration
  • N.O. or N.C. SPST Alarm Relay and N.C. SPST Trouble relay to connect to Alarm Control Panels
  • Optional Buzzer: Produces repeating loud tone bursts during alarm, and chirps if sensor trouble is found


The GD-2B is a low voltage electronic detector of combustible, heating type gases. The GD-2B is designed for connection to Fire Alarm/Burglary Control Panels. The GD-2B is intended for installation in buildings in non-hazardous locations such as residences, retail stores, office buildings, and institutional buildings. This combustible gas detector has been calibrated for detection of methane (natural gas) and propane (LP) gas. It is NOT designed to detect smoke, fire or carbon monoxide.


Alarm Setting 25% LEL Per UL 1484
Sensor Maintenance Not Required
Voltage 9-32VDC, 12/24VAC
Current (non-alarm) 40 mA @ 12 VDC, 20 mA @ 24 VDC, 34 mA @ 12 VAC, 17 mA @ 24 VAC
Current (in alarm) 56 mA @ 12 VDC, 28 mA @ 24 VDC, 46 mA @ 12 VAC, 23 mA @ 24 VAC
Alarm Relay SPST, 100mA, 40VDC
Trouble Relay SPST, 100mA, 40VDC
Buzzer Rating 85 dBA at 10 Feet
Operating Temp Range 40°F (4.4°C) to 100°F (37.8°C)
Size 3-1/8 X 5-1/8 X 1-1/2 inch (7.94 x 13.02 x 3.81 cm)

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