Door detector

{"cid":"69002","pid":"16986187","pimg_url":"\/\/img1.b2bforus.com\/02\/a8\/20c78be14c83\/product\/50305914_s-w400xh400.jpg","name":"Systsem MC-18 Wireless Door Alarm SEWIER Security Alarm Sensor Window Door Control Magnetic Door Opener Sensor (W)","attrs":{"Price":"$4.00(100 - 999 Pieces) $3.50(1000 - 2999 Pieces) $3.00(3000 - 4999 Pieces) $2.50(>=5000 Pieces)","MOQ":"100 Pieces","Delivery Time":"Negotiable","Brand":"SEWIER"}}