Digital LCD CO Carbon Monoxide Smoke Detector Alarm Poisoning Gas Warning Sensor

Description:A perfect item for protecting your family from the dangers of carbon monoxide---Profession Home Safety CO Carbon Monoxide Poisoning Smoke Gas Sensor Warning Alarm Detector LCD Displayer KitchenFeatures:● Lod displayer with a blue back ground light. Advanced level of protection, easy to read with the digital display, even in low light conditions.● Loud 85 decibel alarme Permanent carbon monoxide sensor● Powered by one 9V battey● The alarm will emit four short alarm beeps when Carbon Monoxide is detected and will emit continuous beeps when smoke is detected. The alarm will also emit continuos beeps when both smoke and carbon monoxide are detected at the same time.The red LED will flash while in alarm mode● One beep every 30 seconds is an indication that the battery is low (need replacement) or the unit malfuntioning.● Test button to verify that the unit is functioning correctly.● Green and red LED lights that indicate normal operation and alarm status.The unit will beep and green LED will flash once as power up.● 3 digits LCD displayer is optional, Err on the LCD to indicate the unit is malfunctioning, Lb on the LCD to indicate it low battery and need replacement. 999ppm on the LCD to indicate CO level over 999ppm, if the Co leakage is less than 999ppm but over 30ppm. it would show its actual concentratio.● Blue back light will be lighted when pressing the test botton or alarmDisplays The Level of Carbon Monoxide The Unit Is SensingGreen LED: The green LED flashes e