Seesii 4 in 1 Gas Detector EX O2 H2S CO Gas Monitor Air Quality Tester Analyzer
Seesii 4 Gas Monitor Handheld Gas Detector. Highly Sensitive and Accurate Gas Detector Detects a variety of gases, oxygen O2, carbon monoxide CO, hydrogen sulfide H2S, and explosive gas EX. EX: 0 100%LEL.