Carbon Monoxide Detector Carbon Monoxide Alarm - 85 dB Alarm

Visual and audible alarm warning: When a dangerous level of carbon monoxide is detected, the red LED flashes and the alarm emits an 85-decibel alarm to protect your family's life and property from CO. Standard alarm: The alert time depends on the carbon monoxide concentration level. 50 ppm, alert within 60 to 90 minutes; 100 ppm, alert within 10 to 40 minutes; 300 ppm, alert within 3 minutes. High-quality carbon monoxide detector, equipped with a high-precision and reliable long-life electrochemical CO sensor for rapid detection of CO gas leaks: Power supply: (DC3V) 2 AAA batteries. (Not included) Sensor type: Electrochemical gas detection type: Carbon monoxide Material: ABS LED indicator function Green LED: The green LED flashes every 40 seconds to indicate that the unit is functioning correctly. Red LED: When a dangerous level of carbon monoxide is detected, the red LED flashes and an alarm sounds. LCD screen solubility: 000-999 PPM “Lb” on the LCD screen indicates a low battery (requires replacement)