CHAPTER 6: Underwriters Laboratories Inc. UL2034

What Levels of CO Cause an Alarm?

Underwriters Laboratories Inc. UL2034 defines 3 specific alarm points by which all residential CO Alarms must alarm. They are measured in parts per million (ppm) of CO over time (in minutes).

UL2034 Required Alarm Points:

•If the alarm is exposed to 400 ppm of CO, IT MUST ALARM BETWEEN 4 and 15 MINUTES

•If the alarm is exposed to 150 ppm of CO, IT MUST ALARM BETWEEN 10 and 50 MINUTES.

•If the alarm is exposed to 70 ppm of CO, IT MUST ALARM BETWEEN 60 and 240 MINUTES.

IMPORTANT!

CO Alarms are designed to alarm before there is an immediate life threat. Since you cannot see or smell CO, never assume it’s not present.

•An exposure to 100 ppm of CO for 20 minutes may not affect average, healthy adults, but after 4 hours the same level may cause headaches.

•An exposure to 400 ppm of CO may cause headaches in average, healthy adults after 35 minutes, but can cause death after 2 hours.

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IMPORTANT!

This CO Alarm measures exposure to CO over time. It alarms if CO levels are extremely high in a short period of time, or if CO levels reach a certain minimum over a long period of time. The CO Alarm generally sounds an alarm before the onset of symptoms in average, healthy adults.

Why is this important? Because you need to be warned of a potential CO problem while you can still react in time. In many reported cases of CO exposure, victims may be aware that they are not feeling well, but become disoriented and can no longer react well enough to exit the building or get help. Also, young children and pets may be the first affected. The average healthy adult might not feel any symptoms when the CO Alarm alarms. However, people with cardiac or respiratory problems, infants, unborn babies, pregnant mothers, or elderly people can be more quickly and severely affected by CO. If you experience even mild symptoms of CO poisoning, consult your doctor immediately!

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BRK electronic CO2120PDN user manual Underwriters Laboratories Inc. UL2034, What Levels of CO Cause an Alarm?
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CO2120PDN specifications

The BRK electronic CO2120PDN is a top-of-the-line carbon monoxide detector designed to enhance safety in residential and commercial spaces. Featuring advanced technology and a user-friendly design, this device effectively monitors for harmful levels of carbon monoxide, offering peace of mind to users.

One of the standout features of the CO2120PDN is its electrochemical sensor, which is known for its high accuracy and sensitivity. This type of sensor is specifically engineered to detect even the smallest amounts of carbon monoxide, ensuring that any dangerous buildup of this colorless, odorless gas is identified promptly. The electrochemical sensor also provides a rapid response time, which is crucial for alerting occupants to potential hazards before they can cause harm.

The CO2120PDN boasts a robust digital display that provides real-time information on carbon monoxide levels. This display is not only informative but also user-friendly, ensuring that even those who are not technologically savvy can easily interpret the data. In addition to real-time monitoring, the device is equipped with a memory feature that stores the highest levels of carbon monoxide detected. This can be useful for identifying trends over time and understanding potential sources of pollution.

An important aspect of the CO2120PDN is its adaptability. It can be powered by either a sealed lithium battery or AC power, providing users with options depending on their specific needs and circumstances. The battery backup ensures that the device remains operational even during power outages, a critical feature in emergencies.

The device also includes an alarm function that emits a loud, attention-grabbing tone when it detects carbon monoxide levels that exceed safe thresholds. This alarm is designed to wake sleeping individuals, providing an essential layer of safety, especially in households with children or elderly residents.

Installation of the CO2120PDN is straightforward, and it can be mounted on a wall or placed on a flat surface. The device is also lightweight and compact, ensuring that it can fit comfortably in various locations without taking up too much space.

Overall, the BRK electronic CO2120PDN stands out for its advanced sensing technology, user-friendly features, and reliable performance. Whether in a family home or a commercial establishment, this device is an essential tool for protecting against the dangers of carbon monoxide exposure. With its commitment to safety and innovation, BRK electronic continues to deliver high-quality products that meet the needs of consumers.
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