CO2 Safety Monitor Installation Tips |
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CO2 Safety Monitor Installation Tips


CO2 Safety Monitor Placement

Prior to installing your CO2 (carbon dioxide) safety monitor, it is important to know that proper gas detection placement is just as important as having the device itself.

Serious thought should be put into planning the placement, electrical wiring, careful protection of devices as well as how to train employees about the devices and what to do if they hear an alarm.

In every instance a risk assessment is the initial key to safety.

CO2 Safety Monitor System Includes

  1. CO2 Sensor - mounted near the gas 12-18 in. from the floor
  2. Remote Display - mounted outside the door at eye level

Note that while both of these devices include audible and visual alarms, they need to be installed differently.

Installing the CO2 Sensor

Your site assessment should consider two additional factors before you install a CO2 monitoring system.

  1. Prior to your site assessment we recommend that you inquire about and understand the local and state codes that may require additions to  your CO2 safety monitoring system. High-visibility strobe lights are the most common addition required.
  2. Some jurisdictions also require that CO2 safety monitors be tied to the fire alarm panel to trigger an automatic call to the local fire department to warn of a CO2 leak. 

Meeting these requirements is not optional; depending on your local inspector, you will be fined if these requirements are not met.

CO2 Sensor Mounting Height

CO2 Sensor Placement Diagram

Once you know the approximate location of the sensors, the confined space, and how many you'll require, the next step is to determine where to mount them.

Its important to know, that the CO2 sensor unit should be mounted no higher than 12 inches (31 cm) above the floor.

Think of CO2 flowing like water. Water will fill a cup from the bottom upwards. The same will happen in interior spaces like draft coolers, restaurants, breweries, and grow facilities. Because the CO2 gas is heavier than normal air it will flow down stairs or collect in low lying areas first.

The next consideration is power. While our CO2 Safety Monitors use a 110-220 VAC 50/60 Hz to 12VDC power, a 24 VDC hard-wired power option is available if normal wall power is not readily available or if the user prefers the added benefit of ensuring the device cannot be unplugged. The important thing to remember is that the CO2 Sensor should be mounted in such a way that it cannot be accidentally damaged when moving kegs, crates or gas cylinders nearby. In addition, if using the power adapter insure that the plug is secured to the wall so that staff does not accidentally or purposefully unplug the alarm.

Remote Display Mounting Height

co2 alarm remote display

Both the CO2 Sensor unit and remote display unit have audible and visual alarms. However, while the CO2 Sensor monitors in an enclosed area where a potential CO2 leak could occur, the Remote Display is designed to be mounted outside the space and to warn staff of a potential gas leak before entering the area. 

Remote displays should be mounted at eye level near the door frame of any door entering the enclosed area. They should be mounted on the same side as the door handle to insure they are not covered when the door is open. 

Our CO2 Safety Monitors have the ability to daisy-chain up to 3 remote displays to a single CO2 sensor unit. If their are more than 3 entry doors, a second CO2 sensor unit will be required.

Safety Signage

Once the CO2 Sensor Unit and Remote Display(s) are installed, you should also install safety signage at every door. The signage should be visible whether the door is opened or closed.

All our CO2 Safety Monitors come with the necessary safety signage in both English and Spanish. You can also download these signs to print here.

Depending on your local codes, you may also be required to have National Fire Prevention Association (NFPA) 704 signs on the outside of your building to warn emergency first responders of stored gases inside your facility. Learn more about NFPA 704 signs for CO2 here.

CO2 Safety Coverage Areas by Application

Bulk CO2 Delivery Systems

CO2Meter Remote CO2 Storage Safety 3 Alarm RAD Installation Process and Guide

In these applications monitors cover approx. 1,250 sq. feet (length x width of the space). Typically, placing the CO2 sensor within 10 feet of the bulk CO2 storage tank, cylinders, and the BIB rack is sufficient. Larger spaces may require additional monitors. Enclosed rooms or spaces like closets, offices, bathrooms, and keg coolers would require additional monitoring as gas can be trapped in these spaces because of the enclosure.

CO2 Enrichment Areas

Applications where CO2 is intentionally injected into a space (called enrichment) will allow for larger coverage areas. For example, indoor agriculture use will allow for larger coverage areas because of the continuous circulation of the air. In these applications a CO2 safety monitor can effectively cover up to 1,500 sq. feet (length x width of the space).

However, each installation should be considered individually to account for the particular layout and any varying or enclosed spaces within the footprint.

Note that the suggestions above are best practices gained from experience, but are not an endorsement of any specific location in your building. Every installation is different. If you have questions about your installation, contact your local building inspector.

For further information on CO2 safety monitoring, meeting code compliance, or overall installation tips - speak to an expert today,

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