Product name:Mini portable c2h4 ch4 detector gas ethylene meter Detecting Gas:c2h4,ch4 Usage:c2h4 ch4 detector gas ethylene meter Measure Range:0-100%LEL Color:yellow Weight:0.135g Alarm Type:Sound light shock Size:108 mm * 61 mm * 40 mm Alarm point:25%LEL Warranty:12 Months Show More