Item: HT-1805 Four in one gas detector
Gas Type: Oxygen, Carbon Monoxide, Hydrothion, Combustible Gas
Measuring range: O²: 0~25.0% VOL
CO : 0~500PPM
H²S : 0~100 PPM
Combustible Gas : 0~100% LEL
Measuring Principle: Electrochemical principle, life for 1 year
Power: 3.7V li-battery
Product Size: 136*68*34mm