Oxygen Hydrothion H2S Carbon Monoxide Co Combustible Gas 4 IN1 Detector New cx
Co Combustible Gas Monitor Carbon Monoxide H2S 4 IN1 Detector New Oxygen. H2S:0`500PPM. Resolution: Combustible Gas:0~100%LEL. To alarm: Acoustic,optical double alarm,can set thealarm value,an alarm sound isdivided into 80dB.