disconnection alarm for invisible grill

{"cid":"91195003","title":"120dB DY Invisible Grille","imgUrl":"https:\/\/img.chinax.com\/nimg\/ec\/58\/eca0dab4d499a6bf7e9a4c4bacc2-200x200-1.jpg","attrs":{"Price":"2 USD\/PC","Brand Name":"DY Invisible Grille","Model Number":"Alarm","Minimum Order Quantity":"20Bags","Delivery Time":"3-5days","Place of Origin":"Guangzhou","Payment Terms":"T\/T","Supply Ability":"1000000pcs\/per month","Packaging Details":"Carton box","MOQ":"20Bags","Packing One Bag":"1 Pc in I box","Product size":"90\u00d755\u00d727mm","Packing size":"95\u00d757\u00d733mm","Voltage":"9 V","Working voltage":"DC 9V (9V alkaline battery)","Used For":"Balcony,Window invisible grille","Alarm sound pressure":"120dB","Induction method":"Disconnection alarm","Installation method":"back magnetic type can also be hung"}}