{"product_id":"gd-6-macurco-combustible-gas-detector-with-dual-relays-and-4-20-ma-output","title":"GD-6 | Macurco Combustible Gas Detector with Dual Relays and 4–20 mA Output","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Macurco GD-6 is a low-voltage, dual-relay combustible gas detector and ventilation controller for continuous monitoring of hazardous gas levels. It uses a microcomputer-based system with a pellistor sensor to detect methane, propane, or hydrogen, providing relays and 4–20 mA outputs for control and integration.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMacurco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlame Safety Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGD-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGas Detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTarget Gases\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMethane (CH₄), Propane (C₃H₈), Hydrogen (H₂)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–50% LEL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePellistor, long-life (5+ years)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 5 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A SPDT fan relay, 0.5A SPST alarm relay, 4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModbus RTU RS-485 (with adapter), BACnet MSTP (with adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConfigurable at 5–25% LEL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Relay Settings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDelay: 0–10 min; Minimum Run Time: 0–15 min; Latching or non-latching\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGreen power LED, 3-character LED display, buzzer (75 dB at 1')\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12–24 VAC or 12–48 VDC, max 3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23 mA standby, 50 mA (fan relay), 75 mA alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°F to 125°F (–18°C to 52°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–90% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate, IP42 rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard 4x4 electrical box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 x 4 x 2.1 in (11.4 x 10.2 x 5.4 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eETL Listed to UL 2075, ULC 588, CE, RoHS, REACH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 lb (0.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eGD-6\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe GD-6 is a versatile combustible gas detector from Macurco, designed for industrial and commercial applications such as boiler rooms, warehouses, landfills, and battery charging stations. It can detect and display concentrations from 0–50% of the lower explosive limit (LEL), with relay outputs that can trigger exhaust fans, shut down supply lines, or activate alarms. The device mounts directly on a standard 4x4 electrical box, simplifying installation, and includes options for Modbus RS-485 and BACnet communication. With long-life sensors, configurable alarm levels, and ETL certifications, the GD-6 ensures both safety and compliance in demanding environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-Gas Detection: Selectable target gases include Methane (CH₄), Propane (C₃H₈), and Hydrogen (H₂).\u003c\/li\u003e\n\u003cli\u003eDual Relays: Equipped with a 5A SPDT fan relay and a 0.5A alarm relay for control and notification.\u003c\/li\u003e\n\u003cli\u003e4–20 mA Output: Provides continuous analog monitoring for integration with control systems.\u003c\/li\u003e\n\u003cli\u003eConfigurable Settings: Selectable fan delay, alarm levels, latching modes, and buzzer operation.\u003c\/li\u003e\n\u003cli\u003eFast Response: Sensor response time is less than 5 seconds for quick hazard detection.\u003c\/li\u003e\n\u003cli\u003eUser-Friendly Interface: LED display, buzzer, and status indicators simplify testing and operation.\u003c\/li\u003e\n\u003cli\u003eFlexible Power Input: Operates from 12–24 VAC or 12–48 VDC, with optional Modbus or BACnet adapters.\u003c\/li\u003e\n\u003cli\u003eCertified Safety: ETL listed to UL 2075 and ULC 588, with CE compliance for international use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe GD-6 delivers the accuracy and flexibility required for continuous combustible gas monitoring in industrial safety systems.\u003c\/p\u003e","brand":"Macurco","offers":[{"title":"Default Title","offer_id":49105196974336,"sku":"GD-6","price":1127.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/macurco-gd-6-low-voltage-monitor-272247.jpg?v=1785542331","url":"https:\/\/alotechparts.com\/products\/gd-6-macurco-combustible-gas-detector-with-dual-relays-and-4-20-ma-output","provider":"Alo Tech Solutions","version":"1.0","type":"link"}