4 wire fire warning system for homes

{"cid":"91221733","title":"Reliable DC12~24V 4-Wire Smoke Detector with High Sensitivity \u2013 Easy Installation for Industrial Equipment, Fire Warning Systems & Home Buildings","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/b9\/b574b040df574550ec49f0cea768-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"ANJISI","Model Number":"CA2001L","Minimum Order Quantity":"1PCS","Delivery Time":"3 Working days","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T,Western Union","Supply Ability":"10000\/Month","Packaging Details":"72pcs\/carton","Rated Operational Voltage":"DC12~24V","Humidity":"\u226495%","Sound Pressure Level":"Above 65dB","Specification":"D105mm, H50mm","Product Type":"Smoke Alarm with Relay Output","Appliction":"Security System,Industrial Control Equipment","Output":"Realy output: 1A DC24V(No\/NC optional) | Customized Request","Application":"Industry, Communication Electronic Products, Special Equipment"}}