Do I need to keep my Dexcom ONE transmitter?

No, Dexcom ONE+ is an all-in-one sensor and transmitter. There is no need for a separate transmitter.
Dexcom, Dexcom Clarity, Dexcom Follow, Dexcom One, Dexcom Share, Share are trademark or registered trademarks in the U.S. and may be in other countries.

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