4-wire

{"cid":"118830","pid":"22231187","pimg_url":"\/\/img1.tradegrowthhub.com\/04\/85\/774570bc8e1e\/product\/74859318_s-w400xh400.jpg","name":"DC 24V CE Certificate Conventional Heat Detector Alarm Thermal Tamper Switch Fire Alarm Sensor For Industrial Building 100*45mm","attrs":{"Price":"$3.00(2 - 999 Pieces) $2.70(1000 - 2999 Pieces) $2.60(3000 - 4999 Pieces) $2.40(>=5000 Pieces)","MOQ":"2 Pieces","Delivery Time":"Negotiable","Brand":"ORINSONG"}}