High quality carbon monoxide detectorBattery not included

1. High quality electrochemical carbon monoxide sensor, it is more accurate, reliable and repeatable2. Super bright LED display. Flashes every 50 seconds to indicate standby status and rapid flicker for detector alarm3. High volume buzzer output, a distance of 3 meters can reach 85 dB4. When the concentration is at 50 ppm, an alarm will sound within 60-90 minutes5. Clear and timely LCD display focus, escort your family and family safely Specification: Feature:High quality electrochemical carbon monoxide sensor, it is more accurate, reliable and repeatable.Super bright LED display. Flashes every 50 seconds to indicate standby status and rapid flicker for detector alarm. High volume buzzer output, 3 meter distance can reach 85dB. When concentration is at 50 ppm, it will alarm within 60-90 minutes. When the concentration is at 100 ppm, it will alarm within 10-40 minutes. When the concentration is at 300 ppm , an alarm will sound within 3 minutes.Clear and timely LCD display focus, escort your family and family safely.Specification:State: Brand New Material: PlasticWhite colorSize: about 10*3cm/3.9*1.2inPackage weight: about 113g.Power supply: 3 x 1.5V batteriesStandby current:Alarm current:Alarm: 1 meter distance can reach 85dB 3KHz, red LED lights flash quickly. Static indication: LED flashes for 30 secondsLow voltage alarm: sounds every thirty seconds, LED displays LBTest button: press a few seconds to trigger the alarm sound, the machine works normally.Package List:1 * CO Alarm1 * User Manual1 * Installation PackageNote:1 . Please allow 1-3cm error due to manual measurement. Thank you for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3.Without batteries! Note: The data is manual measurement, please allow some 1-168cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.