KE2 Sensor Tool lets you manage your KE2 sensors. The Sensor List shows nearby BLE sensors with a search field, status line, and cards for name, last-seen time, temperature, humidity, battery level, and status icons. You can pull to refresh or tap the refresh button, and scanning starts automatically when the screen appears. Tapping a sensor opens the Device Details screen where you enter the password to connect. After connecting, you can edit the device name, choose °C/°F, configure alarms, adjust advertising interval and power, download complete history, view charts, and export records to CSV.