2km los analog i o module

{"cid":"91189349","title":"1W 2km LOS 4-20mA Wireless Analog I\/O Module","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/8f\/62\/bd7c848648533db83e1e72344240-200x200-1.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"}}