The sensor connects wirelessly to a host or other device via Bluetooth, and can display the current body temperature on the device after being turned on. The temperature measurement method is in-ear type, measuring the temperature of the human eardrum. Product advantages: 1. Wireless and non-invasive, making it safer; 2. Refresh rate every 5 seconds, allowing real-time monitoring of current body temperature, with a temperature error with the pulmonary artery not exceeding 0.1 degrees Celsius; 3. Easy and quick operation, automatically connecting to Bluetooth when turned on, and automatically storing data when turned off; 4. Available in disposable and reusable models, with adult and child sizes, meeting more needs