NSI 3000 CO Monitor

Carbon Monoxide (CO) is a risk you can't afford to ignore.

You can't see or smell carbon monoxide, but at high levels it can kill a person in minutes. Carbon monoxide (CO) is produced whenever any fuel such as gas, oil, kerosene, wood, or charcoal is burned.


If appliances that burn fuel are maintained and used properly, the amount of CO produced is usually not hazardous. However, if appliances are not working properly or are used incorrectly, dangerous levels of CO can result.

Thousands of people die accidentally every year from CO poisoning caused by malfunctioning or improperly used fuel-burning appliances. Even more die from CO produced by idling cars.

Fetuses, infants, elderly people, and people with anemia or with a history of heart or respiratory disease can be especially susceptible. Don't ignore the risks. Get a safety check for carbon monoxide in your home or office and consider a professional grade carbon monoxide monitor to help protect you from most risks.*
*portions taken from US Govt. EPA website

Why do I need a low-level monitor?

The NSI low level monitor senses CO levels as low as 5 ppm (parts per million). Infants, children, elderly, persons with respiratory or heart ailments are provided little or no protection from deadly CO with standard alarms. Long-term exposure to Low-level CO above 15 ppm can cause illness and even permanent disabilities.

What about the other detectors sold at retailers and home centers?

Store-bought detectors don't alarm until unsafe levels of 70 ppm or higher are present at the unit for 3-1/2 hours! By then it may be too late. Plug-in models don't always allow for proper placement and don't work during power outages. The NSI 3000 is battery powered for 24/7 protection.

Why is the NSI 3000 more expensive than the others?

Accurate, low-level CO detection requires more expensive components & quality control. The NSI 3000 CO monitor uses the same technology and sensors as in professional-grade CO analyzers used by contractors, fire departments, and utilities. And NSI's unique Continuous Scan mode lets you know the monitor is operational 24/7!

How many monitors do I need?

As with smoke detectors, you should have one monitor installed on every level of your home. Even a single-story home may need two - one at each end.

Where should I place the NSI monitor?

CO is lighter than air. Monitors should be mounted at eye level and no lower. They should be placed in an area with good air circulation. If you have only one monitor it should be placed near the master bedroom. Additional locations include your kitchen, nursery, basement, rooms with fireplaces or gas logs, and near your heating system and/or hot water tank. Your professional installation contractor will determine the best location in your home.

What should I do if my monitor goes off?

Call your CO-Certified contractor at any level below 70 ppm, unless you have symptoms. CO exposure can cause nausea, severe headache, shortness of breath, chest pain, blurred vision, and dizziness. If you experience these symptoms call 911 and leave the house immediately. Above 70 ppm, evacuate immediately. If you have symptoms, call 911 from a neighbors house. Call your utility to turn off the equipment until your CO-Certified contractor can investigate the source of carbon monoxide.

The NSI 3000 Offers Real Protection:

  • Continuous Scan™ mode lets you know monitor is checking for CO - 24/7
  • Digital display shows CO levels of 5ppm or higher
  • Low Alarm - 15 ppm - audible & visual every 8 seconds
  • High Alarm - 35 ppm - audible & visual every 4 seconds
  • Crisis Alarm -70+ ppm -audible & visual every 2 seconds
  • 5-minute Hush button for levels below 70 ppm
  • Designed for wall installation or tabletop use
  • Replaceable 9V battery ensures operation even when power is out
  • 2-Year limited Warranty

For more information on the NSI 3000, call us today at 479-785-1111.

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