Carbon Monoxide Alarm - Battery Operated - WhiteThe Xintex CMD5-M CO alarm uses a sensor operating with a microprocessor to measure Carbon Monoxide (CO) levels. Using a "Time Weighted Average" (TWA) process, it monitors CO concentration, temperature and time to calculate levels of Carboxyhemoglobin (COHb). COHb is the degree to which the oxygen carrying capacity of the blood is impeded by the union of carbon monoxide to the hemoglobin and is expressed as a percentage. The human body absorbs CO easier than oxygen and COHb is the ratio of absorbed carbon monoxide to oxygen in the bloodstream. The CMD5-M alarm calculates this COHb as a function of time and determines the appropriate alarm response.Features:Electrochemical sensor - immediate and stable sensing reduces false alarmsUltra-low current draw - 1 mALong sensor life - Approx. 7 year End of Life (EOL)Multiple location warning - All connected CMD5-MI Alarms sound togetherCompact design for inconspicuous protection - Modern design blends in with interior decorBattery operated version requires no power wiring - Reduced labor and material costs to install Sealed lithium-ion battery - guaranteed 7 year lifeRelay module available for generator shutdown - One relay module for multiple CO AlarmsXintex Quality and Reliability On BoardMicroprocessor controlledConformal coated circuit board for added protectionTime-weighted average CO measurement process constantly monitors all CO levelsHighly resistant to most chemicals, solvents and cleaners12 or 24 VDC operation