Seesii 4 Gas Detector Multi Gas Monitor Air Quality Tester Analyzer EX O2 H2S CO
【High Sensitive & Accurate Gas Sniffer】--Detect a variety of gases, Oxygen (O2), Carbon Monoxide (CO), Hydrogen Sulfide (H2S) and Explosive gas (EX). EX:0-100%LEL. O2:0-30%VOL. 【Ready to Use & High Quality】-- Can use gas detector directly.