DescriptionThe item is a portable and practical digital carbon monoxide detector, which is powered by 3pcs AA batteries, and can be used to detect carbon monoxide and protect your family from the danger of CO. It adopts LCD screen with backlight to show the working status for easy to read. With easy to install and use, it is really a wonderful household digital CO detector for choice.Features- Color: mainly white. - Shell material: durable hard plastic. - and Household LCD Digital Carbon Monoxide Detector Alarm CO Detector CO Alarm. - A perfect item for protecting your family from the dangers of carbon monoxide. - Displays the level of carbon monoxide which the unit is sensing. - LCD display screen with backlight for,easy to read even in low light conditions. - Green LED: Flashes every 30 seconds to indicate the unit is operating properly. The green LED will also flash before CO reading is taken and when any button is pressed. - Red LED : When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound. The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red LED flash. This cycle will continue for 4 minutes and then change to 1 cycle every minute until the device is reset or the CO is eliminated. - Powered by 3 * 1.5V AA batteries (not included).Specifications- Sensor: Electrochemical CO sensor. - Sensitivity/Alarm time: 1. Within 60-90 minutes at 50ppm CO concentration; 2. Within 10-40 minutes at 100ppm CO concentration; 3. Within 3 minutes at 300ppm CO concentration. - Audibility: 85dB ( at 1m distance ), Frequency: 3 - 0.5KHz. - Standby Current: less than 50uA - Alarm Mode : Red LED quickly flashes 4 times with unit chirping every 5 seconds, then repeat . - Low-bat indicator: Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD. - Mal-function Indicator: Chirp every 30s with green LED out and Err on LCD - Power consumption: 0.3mW - Working temperature: 5C~40C. - Working humidity: 20%-90%R.H.
