Carbon Monoxide Detector

Description

Carbon monoxide detector with two status LEDs (normal operation and alarm), LCD display with blue backlight, and Test/Reset button. Powered by three 1.5 V (AA) batteries, it can signal the presence of carbon monoxide (CO) with a powerful audible alarm. It is designed to alarm at the following CO exposure levels: 300ppm, 100ppm, and 50ppm. Wall or desk mounting. Dimensions (mm): 100x100x38.

Carbon monoxide

Carbon monoxide

• Carbon monoxide is a product of incomplete combustion of organic fuels (coal, oil, wood, fuels). It is present in motor vehicle exhaust and tobacco smoke.
• Carbon monoxide is an odorless, colorless, tasteless, and poisonous gas. It is toxic because by binding firmly to iron atoms in blood hemoglobin it forms a complex much more stable than that formed by oxygen. The formation of this complex causes hemoglobin to be stabilized in the form of carboxyhemoglobin (COHb) which, due to its allosteric properties, releases oxygen to tissues with greater difficulty. This leads to unconsciousness and then death. Even at low concentration, carbon monoxide can reduce the oxygen concentration in the brain to the point that the victim becomes unconscious and, in severe cases, dies of asphyxiation. It mixes well with air, with which it easily forms explosive mixtures, and penetrates easily through walls and ceilings. In the presence of finely dispersed metal dusts, the substance forms toxic and flammable metal carbonyls. It can react vigorously with oxygen, acetylene, chlorine, fluorine, nitrogen oxides.

Technical specifications

• 2 status LEDs: green for normal operation, red for alarm status
• Alarm duration: 300ppm CO approximately 3 minutes, 100ppm CO between 10 and 40 minutes, 50ppm CO between 60 and 90 minutes