2km wireless i o module controller

{"cid":"91189349","title":"2km Wireless I O Module 4AI 4AO 4 Channels 4 - 20mA Wireless Analog Acquisition Module","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/0f\/ec20a34daef60cda2d997524d3b1-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"Lensen","Model Number":"LS-RAI04+LS-RAO04","Minimum Order Quantity":"2pcs","Delivery Time":"2-6 days","Place of Origin":"China","Payment Terms":"T\/T, Western Union","Supply Ability":"6000pcs\/month","Packaging Details":"standard carton","Frequency":"433MHz","Power output":"1W","Distance":"2km LOS","Program":"no need","Input":"4 channels 4-20mA","Output":"4 channels 4-20mA"}}