Description
【PERFECT DESIGN】3.93x3.93x1.5 inches, Portable and easy installation.the Cqlunuoly carbon monoxide alarm instantly and accurately detects CO, an invisible, deadly gas, giving you the earliest possible warning of CO threat with both a loud 85 dB alarm and a rapid flashing red LED..【ALARM WARNING】When a Dangerous level of Carbon Monoxide is detected, the Red LED will flash and a loud alarm pattern will sound, Loud 85 decibel alarm with LED Flash While in the Alarm Mode for the Life-Saving Safety..【SAFETY AND VISIBLE】Protect Our Family from CO, With 3 digits of LCD Displayer is Optional, 'Err' indicates the unit malfunctioning. 'Lb' indicates its low battery and needs to replace '999ppm' indicates CO level over 999ppm. 'actual concentration' when less than 999pm..【ENERGY SAVING】Operated by three 1.5V AA Batteries (not included), The alarm sound pattern is 4 beeps every 5seconds for the first 4 minutes. In 4 minutes, it will change to 4 beeps every minute to save the battery..【ALARM STANDARD】50ppm, alert within 60 to 90 minutes; 100pm, alert within 10 to 40 minutes; 300pm, alert within 3 minutes. Note: When you test the detector, please do not use gas to blow the hole directly.
