... alarm portable Product Overview: PG610-O2 oxygen gas monitor (also called gas detector) uses electrochemical sensor, ... from manufacturer directly. PG610-O2 single oxygen gas monitor shell is nonskid, waterproof, dustproof and explosion-proof ... continuous)Protection ClassIP66Weight140 gAppearance Size98 mm × 60 mm × 24 mmStandard configuration: instrument box, gas detector, specifications, certificate ...