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总结
亚马逊旗下安防品牌Ring宣布重新推出其智能家居传感器套件，面向家庭安防与警报系统等使用场景，并在门铃与应用侧带来新增功能与服务入口（如与火灾相关的提醒、应用商店等）。多家媒体同时提到Ring还发布可在停车场等临时场景部署的移动安防拖车产品，主打在任意地点提供360度监控覆盖，定价约5000美元。整体显示Ring正扩展从家庭到户外/临时点位的安防产品线，以提升覆盖面与用户黏性。
正文
Ring relaunches its suite of smart home sensors Engadget Ring around the parking lot: Amazon's security company unveils a $5,000 surveillance trailer GeekWire Amazon's Ring doorbells get fire alerts, an app store, and new sensors TechCrunch Ring's Mobile Security Trailer provides 360-degree coverage anywhere The Verge Ring ready for end of the world as it turns cameras on fires theregister.com
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