New Optimized Imported High-precision SensorsUsing electrochemical sensors, with more reliability, stability, responsiveness, to avoid the possibility of false readings and false alarms. | ErgonomicsIn order to maximize product functionality, a porous structure is designed with 360 ° all-round detection to avoid gas channel blockage | Loud 85 dB(decibel) alarm.The alarm sound pattern is four short alarm beeps. The red LED will flash , pressing the button, green LED will flashes once every second for one minute and the peak alarm level will be indicated on the LCD. |