light curtain sensor with no nc output

{"cid":"91221160","title":"8 Beam 1.5m Blanking Light Curtain Sensor With No\/Nc Output And Aluminum Alloy Shell","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/ec\/90b79d659bc6281b1d7eefd41894-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"JUTAI","Model Number":"CL15-8L8","Minimum Order Quantity":"1","Delivery Time":"5 - 8 working days","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T, L\/C, D\/A, D\/P, Western Union, Paypal, , MoneyGram, Alipay","Supply Ability":"1000 pieces per month","Packaging Details":"Cartoon","Material":"Aluminum Alloy","Feature":"Corrosion Resistant","IP Rating":"IP67","Supply Voltage":"DC12-24V","Sensing Distance":"8m","Operating Temperature":"-20~60\u2103","Operating Current":"<50mA","Output":"No\/Nc, COM","Working Current":"<20mA@DC12V","Specification":"150*2.1*1.5cm"}}

{"cid":"91224413","title":"Ultra Thin Safety Light Curtain NPN NC Output 0-3m Sensor Range Light Curtain Sensor For Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/1e\/8a\/cd485f3dc6c5050435d685f6b64d-200x200-1.jpg","attrs":{"Price":"$24-138\/pieces","Brand Name":"VF","Model Number":"VF-B","Place of Origin":"Guangdong, China","Certification":"CE","Series":"safety light curtain","Features":"Good safety, anti-sesmic, temper-resistance","Mounting Type":"Lateral L-bracket installation","Description":"Large numerical control equipment, large punch","Type":"safety light curtain","Usage":"Large numerical control equipment, large punch","Theory":"Thru-beam","Output":"NPN\/PNP","Protective height":"60-1150mm Universal","Beam gap":"10\/20\/30\/40mm","Beams":"4,6,8,10,12....","resolution":"15,25,35,45mm","Output current":"<=200mA","power":"<5W","Output signal":"NPN\/PNP","cross-section":"25*12mm \/30*30mm\/10*22mm optional"}}