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Oxygen Deficiency Monitor with CO2 Alarm

Oxygen and CO2 Depletion Safety Alarm
Regular price $699.00 USD

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The RAD-0200-2 Oxygen Deficiency Monitor and CO2 Safety Alarm monitors oxygen deficiency and carbon dioxide leaks in enclosed areas. Oxygen deficiency alarms are critical near pressurized tanks of liquid carbon dioxide, nitrogen, or argon. Save on room Oxygen Deficiency Monitor only here.

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Pressurized system gas leaks can quickly displace oxygen and result in an oxygen deficient work area. The Oxygen Deficiency Monitor and CO2 Safety Alarm not only monitors oxygen deficiency, but also monitors high CO2 levels.

The Oxygen Deficiency Monitor and CO2 Safety Alarm has both audible and visual alarms. 3 relays triggered with the alarms can control an HVAC system, send a notification to emergency first responders or update a management display. All alarm levels are user configurable to allow for specific applications.

This monitor and alarm is easy to install and use. Simply wall mount both the sensor unit and remote display (all cables and hardware included), plug the sensor unit into a standard wall outlet, and the alarm is ready to protect the area from potential oxygen deficiency or high CO2 levels 24/7.


  • Easy to read, real-time digital display
  • Built-in 80dB audible and visual alarms
  • 3 configurable alarm relays
  • Reliable connections with standard Ethernet cable
  • Extend remote up to 300 feet from the main unit
  • 4-20 mA output to allow for remote display of gas levels
  • IP54 Enclosure - prevents water damage during wash-down
  • UL listed for compliance


RAD-0200-2: Oxygen Deficiency Monitor + CO2 Safety Alarm. Use where both low oxygen level and high CO2 level alarms are required: restaurants, breweries or anywhere liquid carbon dioxide is stored. 

RAD-0202-2 Add-on Remote Display for Oxygen Deficiency Monitor and CO2 Alarm above. Order up to 2 additional add-on displays to cover 3 entrances. Uses industry standard RJ45 Ethernet cable (not included) to install up to 300 feet away.

CM-1026: Dual Strobe Add On Kit. Attach a flashing strobe to both the sensor and remote display to give a more visual alarm. Used in high-noise environments or where required by an inspector.

CM-1026-5: 100-240 VAC Strobe Tower Add-On Kit - yellow, orange and red indicate alarm levels 1-3. Adds visual notice and high decibel alarm.

CM-1026-6: 24 VDC Strobe Tower Add-On Kit - same features as CM-1026-5 for 24 VDC hard-wired systems.


Oxygen Deficiency Alarm

  • Sensor Life Expectancy: 5+ years
  • Sensor Technology: Fluorescence quenching by Oxygen
  • Measurement Range: 0-25% Oxygen Sensor
  • Alarms: 19%, 17%, 15% O2 (configurable).
  • Alarm Response Time: < 60 seconds
  • Operating Temperature: 0-50°C (32-122°F)
  • Calibration: Manual with test gas or factory calibration

Carbon Dioxide Alarm

  • Sensor Life Expectancy: 15 years
  • Sensor Technology: NDIR Non-dispersive infrared
  • Measurement Range: 0-5% (50,000 ppm)
  • Alarms: 5,000 ppm TWA, 1.5% CO2, 3% CO2 (configurable).
  • Alarm Response Time: < 60 seconds
  • Operating Temperature: 0-50°C (32-122°F)
  • Calibration: Manual with test gas or factory calibration


  • Power Supply: 110-240 VAC to 6 VDC Adapter 
  • 24 VDC hard-wired power option (cable included)
  • Power Consumption: 3 Watts
  • 6 VDC battery backup connections
  • Relays: Peak Current < 2A @ 30 VDC or 250 VAC, SPDT
  • Relay Color Coding:   Red & White = Normally Open   Blue & White = Normally Closed


    • 1 year - See GasLab Terms and Conditions. 


    Manual Storage Safety Alarm RAD-0200-2 DataSheet (pdf)

    Manual Storage Safety Alarm RAD-0200-2 Manual (pdf)

    Safety Alarm fan circuit Exhaust Fan Relay Wiring Diagram (pdf) 


    Installation Installation (same as CO2 alarm except that oxygen depletion alarm should be mounted 48 inches off the floor).

    Fan relay Relay Controlled Exhaust Fan (same wiring as CO2 alarm).

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