... 9 CO Detector 1.Voltage:DC9V 2.Alarm density:150PPM 3.Static current:35uA 4.Alarm LpA:85dB CY-858-9 CO ... ≤ 95%RH IntroductionThank you for purchasing the carbon monoxide alarm.CO gas is an odorless, tasteless and colorless gas that can ... Alarm to be final safety, if you suspect presence of CO immediately open windows and doors and vacate the property. ... : 5~400C, 20~90%R.H. CY-858-9 CO Detector