This is a lightweight local utility app built for mobile devices. It features clear location information display and general Bluetooth short-range data transmission capability, suitable for real-time location checking, on-site data debugging and basic device status viewing. All features run fully offline on your device with no internet connection or remote server dependency. We never collect, store or upload any of your personal data. Bluetooth and location permissions are only activated upon your manual request, solely to deliver the above core functions, and will not be used for any other irrelevant purposes. With a clean interface and intuitive controls, this app provides all users with a stable, trustworthy and fully privacy-protected local tool experience for field debugging and data viewing.