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Oxygen Depletion Safety Alarm

Oxygen Depletion Safety Alarm
Regular price $499.00 USD

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Our oxygen depletion safety alarm monitors indoor oxygen levels near storage tanks of gases like carbon dioxide, nitrogen, or argon. Pressurized system gas leaks can quickly displace oxygen and result in an unsafe enclosed work area.

These monitors have both audible and visual alarms. 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.

Our oxygen depletion safety alarms are easy to install and use. Simply mount both units on the wall (all cables and hardware included), plug the monitoring unit into a standard wall outlet, and the alarm is ready to protect the area.


  • Large display clearly indicates current gas level and temperature
  • 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


RAD-0002: Oxygen Depletion Safety Alarm. Used in cryogenic, medical and industrial applications where nitrogen or other inert gases are stored. Uses RAD-0022 add-on display.

RAD-0200-2: Oxygen Depletion + CO2 Safety Alarm. Used in restaurants, breweries or anywhere liquid carbon dioxide is stored. Uses RAD-0202-2 add-on display.

CM-1026: Dual Strobe Add On Kit. Attach a flashing strobe to both the sensor and remote display to give a more visual alarm. Great for high-noise environments. Call to see if your local Fire Code or municipality requires these.

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

  • 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
  • Sensor Life Expectancy: 2-3 years

Carbon Dioxide Alarm

  • 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
  • Sensor Life Expectancy: 15 years


  • 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. 

    Carbon dioxide Safety Alarm RAD-0002 Data Sheet (pdf)

    Manual Storage Safety Alarm RAD-0002 Manual (pdf)

    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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    "Swift response and shipment. The product is easy to setup and use. It is just what I was looking for."

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