![]() ![]() In the late 1990s Underwriters Laboratories changed their definition of a single station CO detector with a sound device in it to a carbon monoxide (CO) alarm. Carbon monoxide may have severe adverse effects on the fetus of a pregnant woman.Ī carbon monoxide detector or CO detector is a device that detects the presence of the carbon monoxide (CO) gas in order to prevent carbon monoxide poisoning. Exposures to carbon monoxide may cause significant damage to the heart and central nervous system, especially to the globus pallidus, often with long-term chronic pathological conditions. In the United States, the OSHA limits long-term workplace exposure levels above 50 ppm.Ĭarbon monoxide also binds to other molecules such as myoglobin and mitochondrial cytochrome oxidase. A level of 50% carboxyhemoglobin may result in seizure, coma, and fatality. Concentrations as low as 667 ppm may cause up to 50% of the body's hemoglobin to convert to carboxyhemoglobin. It combines with hemoglobin to produce carboxyhemoglobin, which usurps the space in hemoglobin that normally carries oxygen, but is ineffective for delivering oxygen to bodily tissues. Carbon monoxide is colorless, odorless, and tasteless, but highly toxic. In coordination complexes the carbon monoxide ligand is called carbonyl.Ĭarbon monoxide poisoning is the most common type of fatal air poisoning in many countries. It is the simplest oxocarbon and is isoelectronic with other triply-bonded diatomic molecules having ten valence electrons, including the cyanide anion, the nitrosonium cation and molecular nitrogen. ![]() In the atmosphere, it is spatially variable and short lived, having a role in the formation of ground-level ozone.Ĭarbon monoxide consists of one carbon atom and one oxygen atom, connected by a triple bond that consists of two covalent bonds as well as one dative covalent bond. It is toxic to hemoglobic animals (both invertebrate and vertebrate, including humans) when encountered in concentrations above about 35 ppm, although it is also produced in normal animal metabolism in low quantities, and is thought to have some normal biological functions. Find the CO detectors that meet your home and families’ needs at First Alert.Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air. Investing in a carbon monoxide alarm is a small price to pay to help make sure you and your family are protected in the event of an emergency. Some of our hardwired detectors even come with a battery backup, such as this combination alarm that comes with two AA batteries to help keep your alarm functioning when your home loses power. It is powered by a 10-year battery that lasts the life of the alarm. The detector also features programmable voice alerts to indicate the type of danger and the location of the detected CO gas or fire threat in your home. This combination photoelectric smoke and carbon monoxide alarm is sleek and easy to install. Combination Alarmsįirst Alert also offers combination alarms, which provide 2-in-1 protection against smoke and carbon monoxide. It also has a backlit digital display to provide a clear read. ![]() This combination alarm detects both carbon monoxide and explosive gases. This plug-in CO alarm has a battery back-up that continues to provide protection against CO in case your house loses power. Installation of this type of CO gas detector is as simple as plugging it into your home’s standard electrical socket. Plug-in alarms are convenient and provide reliable protection for your family. The detector also has a no installation, sleek design meant to be placed on tabletops, anywhere from a coffee table to the bookshelf. The 10-year battery, CO710 carbon monoxide alarm comes with an easy-to-read backlit digital LED display screen that shows both the temperature, as well as the CO concentration levels when detected. ![]() Ten-year sealed battery alarms eliminate the need to replace the batteries for the life of the alarm and late night battery chirps. ![]()
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