1 4 channel aluminum gas detector

{"cid":"91221045","title":"Die-casting Aluminum Gas Detector RS485 1-4 Channel CO2\/CO\/H2S\/O2 Alarm Control System","imgUrl":"https:\/\/img.ismap.com\/nimg\/b7\/87\/fa7eccd0207045184586e957c3d7-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"YAOAN","Model Number":"YA-D400","Minimum Order Quantity":"1","Delivery Time":"2-7 working days","Place of Origin":"Shandong,China","Certification":"ATEX,CE,FCC,ROHS,SIL","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"5000 sets per month","Packaging Details":"Standard import and export cardboard packaging,use sponge or bubble bag to fill key positions.","Sensor type":"Combustible: Catalytic Combustion Type; Toxic: Electrochemical Type (imported Sensor)","Installation Method":"Pipeline Type Wall Mounting Type","Output Signal":"4-20 MA, Modbus,","Output signal":"4-20m Acurrent Signal, Corresponding To Full Scale","Material":"Die-casting Aluminum","Dimension":"205*209*84mm","Minimum reading":"Combustible: 1% LEL; Toxic: 0.1\u03bcmol\/mol(determined By Sensor)","Gas Unit":"PPM, Mg\/m3, Vol%, LEL%"}}