Macurco GD-2B Security Series Combustible Gas Detector for Natural Gas or Propane

The Macurco GD-2B is a reliable gas detector designed to sense combustible and heating gases, including natural gas (methane) and propane (LP). It is engineered for use in residential, multi-family, and light commercial buildings where early detection of gas leaks is critical for safety. Compact and easy to install, the GD-2B integrates seamlessly with control panels and provides dependable protection.

With dual power options of 9-32 VDC or 12-24 VAC, the GD-2B offers flexibility for various installations. Its 10-year solid-state sensor requires no calibration, delivering consistent performance with minimal maintenance. The unit provides both alarm and trouble relays, ensuring quick communication with security or fire alarm panels. Designed for flush or surface mounting, it easily adapts to standard electrical boxes.

The GD-2B complies with UL safety standards and provides sensitivity at 25% of the lower explosive limit (LEL), covering up to 900 sq ft per detector. It includes LED status indicators and an optional 85 dB buzzer for clear alerts, making it a versatile and trusted safety device.

Key Features

• Detects natural gas and propane for enhanced safety
• Operates on 9-32 VDC or 12-24 VAC power
• 10-year solid-state sensor with no calibration required
• Alarm and trouble relays for integration with control systems
• Sensitivity set at 25% LEL per UL standards
• Flush or surface mount installation options
• Covers up to 900 sq ft per detector
• Optional 85 dB audible buzzer for alarm indication

Technical Specifications

• Voltage: 9-32 VDC or 12-24 VAC
• Current (non-alarm / alarm): ~53 mA / ~79 mA at 9 VDC
• Alarm Relay: SPST, 100 mA at 40 VDC
• Trouble Relay: SPST, 100 mA at 40 VDC
• Sound Output: 85 dB at 10 ft (optional buzzer)
• Operating Temperature: 40 °F to 100 °F
• Coverage Area: Up to 900 sq ft
• Dimensions: 3.13 in × 5.13 in × 1.75 in
• Weight: 0.54 lb
• Certifications: UL 2075, tested to UL 1484