Whistle pet trackers are headed to the Internet of Things (IoT) graveyard. After releasing its first product in 2013, the Seattle-based Whistle has just been acquired by a competitor that has decided to brick all of Whistle's smart GPS and activity monitors.

Tractive, an Austrian company that has also been selling Internet-connected GPS trackers for pets since 2013, on Monday announced its acquisition of Whistle from Mars Petcare, as spotted by The Verge . Mars Petcare is the pet food subsidiary of Mars Inc (which also makes candies like M&M’s), and it acquired Whistle in 2016 for $117 million .

Tractive bought Whistle to expand its business in the US. Until September 30, Whistle owners can get Tractive devices to replace the Whistle trackers that Tractive is bricking. People current

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