The Dexcom ONE+ sensor is an advanced continuous glucose monitoring system that measures sugar levels around the clock without the need for frequent finger pricks. Key features of the Dexcom ONE+ sensor: Instant readings: Displays automatic sugar readings every 5 minutes directly on your smartphone. No manual scanning: The device works automatically after pairing with the phone. Usage duration: Each sensor lasts for 10 days with a 12-hour grace period. Short warm-up time: Only needs 30 minutes to warm up at the start. Smart alerts: Sends instant alarms when sugar levels rise or fall outside the normal range. Water-resistant: Waterproof up to 2.4 meters for 24 hours.