A co-meter is a detector that uses specialized sensors to monitor the concentration of carbon monoxide and carbon dioxide in the air. These devices are independent of electrical outlets, allowing them to be placed in multiple locations within an indoor space. When the sensors detect a change in the air composition, they trigger an alarm signal to alert occupants. These alarms are often designed to emit an audible warning sound, although some models feature digital displays of carbon monoxide levels in parts per million (ppm).

Gas Detector 101: Everything You Need to Know

Carbon Monoxide is a colorless and odorless gas that can build up in a home or other building to dangerously high levels. It is produced when fuels such as wood, coal or gasoline burn without being properly vented. It can also be produced by faulty furnaces, generators or other fuel-burning appliances. It is also present in the exhaust of cars and trucks that use internal combustion engines.

Symptoms of carbon monoxide poisoning include dizziness, headache and nausea. To avoid poisoning, it is important to have your heating system and other fuel-burning appliances inspected by a qualified technician each year. It is also a good idea to have a battery-operated CO detector installed in your home, and to replace the batteries on a regular basis.

When purchasing a CO detector, look for one with a UL 2034 label. This mark indicates that the detector has been tested and meets safety standards for CO detection. Also consider whether you prefer a plug-in model or a battery-operated unit. A plug-in CO detector will only provide protection in the event of a power outage, while a battery-operated CO detector will still be effective even during long power outages during winter.