... color touch display screen.Range: 0-1000ppm, 0-100%LEL, 0-100%VOL.Resolution: 1ppm, 0.1%LEL, 0.1%VOL.Responde time: <5sSensor ... flow of 1.2L/min, and the minimum flow of 0.5L/min (flow adjustable).Power: Environment protection rechargeable Li-ion ... : IP65Operating temperature: -20°C~+50°C (Standard)Operating Humidity: 0%~95% (Non-condensed) Dimensions: 200mm×120mm×80mmWeight: <2kgStandard Configuration ...