... <=5%LEL 3.Resume density:8% LEL GA-338 Gas Detector 1. Voltage:AC220V or DC12V2. Sound pressure range:≥ ... :8% LEL5. Induced gas: coal gas, natural gas, LPG6. Alarm mode: flash & sound alarm,automatically shut-off gas valve, network alarm signal output7 ... the idea: Technology | High Quality | Excellent Service NORDSON Electronic Co., Limited is a manufacturer specialized in production and marketing ...