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Unsurprisingly, Siminoff is building toward something bigger than doorbell cameras. Ring has more than 100 million cameras in the field and is now quietly dipping into enterprise security with a new “elite” camera line and a security trailer product. He acknowledged that small businesses have been pulling Ring into their spaces already, whether Ring markets to them or not. He’s also open to outdoor drones — “if we could get the cost in a place where it made sense” — and on license plate detection, which Ring’s now former partner Flock Safety has made its core business, he declined to say never. (Asked directly whether it’s something Ring might explore, he said Ring is “definitely not” working on it today but then added: “It’s very hard to say we’re never going to do something in the future.”)。关于这个话题，新收录的资料提供了深入分析
The tests used in standards for evaluating smoke alarms were developed back in the 1980s. However, despite changes in building materials since then, smoke alarms remain reliable, says Chagger: "They still respond to all the main fires we get today."
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