Carbon Dioxide Gas Alarm | CO₂ Alarm Detector

Carbon dioxide (CO₂) gas alarms monitor CO₂concentrations in the air. When the CO₂concentration exceeds a set value, the detector automatically emits an audible and visual alarm, alerting personnel to take immediate action. Carbon dioxide gas detection systems are widely used in brewing, cold storage, greenhouses, laboratories, and industrial production facilities to ensure worker health and production safety.

CMC company carbon dioxide(CO₂) gas detectors:

Industrial Carbon Dioxide concentration alarm system technical sheet:

Item Specification
Gas Detected Carbon dioxide (CO₂)
Detection Principle Infrared principle
Measuring Range 0–5000 ppm (optional: 0–10000 ppm, 0–50000 ppm)
Resolution 1 ppm
Detection Accuracy ≤ ±3% F.S.
Response Time (T90) ≤ 30 seconds
Signal Output 4–20 mA / RS485 Modbus / Relay
Alarm Method Sound and light alarm + LED light
Relay Output 1 or 2 dry contact relays (normally open)
Working Voltage 12V–36V DC
Power Consumption ≤ 3W
Display Digital display (optional LED or LCD)
Installation Method Wall-mounted (optional flange or duct mount)
Housing Material Explosion-proof aluminum alloy
Ingress Protection IP66, dustproof and waterproof
Operating Temperature -20℃ to +55℃
Operating Humidity 0–95% RH (non-condensing)
Typical Applications Beer, beverage, wine and other fermentation workshops, food cold storage and freezer storage, greenhouses, laboratories, underground parking lots, boiler rooms, etc.

Fixed carbon dioxide gas alarm application places:

Application Areas Typical Locations (English)
Industrial production and storage CO₂ storage tanks, filling stations, dry ice production and storage areas
Food and beverage industry Breweries, wineries, carbonated beverage filling plants, cold storage/freezer rooms
Public and commercial places Underground parking garages, shopping malls, cinemas, entertainment venues, greenhouses
Laboratory and scientific research University laboratories, research institutes, medical facilities, gas laboratories
Other applications Machine rooms, warehouses, and ship compartments with CO₂ fire suppression systems

Carbon dioxide gas alarm system installation:
– CO₂ is heavier than air, so the detector should be installed at a height of 0.3–0.6 meters above the ground.
– Avoid locations with strong airflow (such as fans and air conditioning vents) to prevent interference with detection.
– Place detectors as close as possible to potential leak locations (such as valves, pipe connections, and storage tanks).

In addition to monitoring carbon dioxide, fixed carbon dioxide alarms can also monitor toxic and flammable gases such as carbon monoxide (CO), hydrogen sulfide (H₂S), ammonia (NH₃), methane (CH₄), and liquefied petroleum gas (LPG). They are widely used in industrial, laboratory, and storage environments to achieve multi-gas safety monitoring.

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