Dexcom G7 All-in-One Sensor and Transmitter (Retail).Inserted using a single-use applicator. Collects sensor glucose readings and sends them to the display device Dexcom G7 Receiver (optional) and/or smart device. The new G7 sensor patch contains medical-grade, pressure-sensitive, acrylic-based adhesive. It has passed irritation testing and contains no latex. The Dexcom G7 sensor is not compatible with any previous-generation components.