2022 Best Design En50291 10 Years Battery LCD Display Carbon Monoxide Alarm Home Co Detector

       Technical Specifications:Power SourceDC 3V batteryAlarm Volume>85dB(A) @ 3meters.Comply with standardEN 50291-1:2018Sensor typeFigaro electrochemical sensorAlarm Current≤60 mAHush time8 minutesProduct service life10 yearsHumidity Range30%- 90% relative humidity (R.H.)Operation Temperature0ºC to 40ºCSize110mm in length x 68.5mm width x 32.8mm heightAlarm HornContinuous BI 4 sounds, Red LED sync: Bi 0.3S stop 0.3S, Bi 0.3S stop 0.3S, Bi 0.3S stop 0.3S, Bi 0.3S stop 0.8S, with the red LED flash, Followed by Recycling. Frequency less than 3.5 KHz.       Details of the product function:Standby modeAfter the product is installed, if the alarm device is operating properly, the green LED-Flashing once every 50 secondsAlarm modeWhen the carbon monoxide alarm detects the carbon monoxide gas and the carbon monoxide concentration reaches the alarm threshold, the red LED flashes once every 1 second with the alarm sound of pulse type until the gas disappearsLow battery modeWhen the battery voltage is low than threshold, an intermittent "chirp" with yellow LED flashes once every 50 secondsFailure modeWhen the alarm detects signal abnormal, the LCD show "Err", the yellow LED of the alarm will flash twice approximately every 50 seconds and the horn will synchronize two "squeak" callsEnd of lifeWhen the alarm is switched on for 10 years, the LCD show "End", the yellow LED of the alarm will flash three times approximately every 50 seconds, the horn will synchronize three times "squeak" callsSilence modeWhen the alarm is alarming, pressing the test button and the alarm will stop for about 8 minutes. At this time, red LED and green LED flash once synchronously every 8 secondsTest modeTest the unit to ensure proper operation by pressing and releasing the test button. At this time, the red LED will flash once per 0.8 second with pulsating alarm until test button is releasedNOTEWEEKLY TESTING ONE TIMES IS REQUIRED.Product description           A carbon monoxide alarm is an electrical signal that changes the concentration of carbon monoxide gas in the air via a carbon monoxide sensor. The size of the electrical signal depends on the co concentration.                   A built-in CR123 A lithium battery and warns you when the battery is low.                   In order not to disturb your rest, the products are designed with silence function.         The test function of the product design is to test whether the product works properly by pressing the test button. Weekly testing is required.  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1