Portable 4 in 1 Gas Sensor multi CO LEL O2 H2S Gas Analyzer Our portable multi gas detector with a large LCD. It can monitor CO, H2S, O2 and combustible gas simultaneously. The instrument with audio/visual and vibratory indicators, rechargeable battery, and simple use. It is widely used in the area where explosion-proof is required … Continue reading Portable 4 in 1 Gas Detector CO LEL O2 H2S Gas Analyzer
