Connect the Hub to APP:1. Tap the “+" on the upper right corner and choose 'Add device';2. Choose 'Hub', and tap the 'Smart Hub' icon;3. Press and hold the on/off button 5 seconds until the led indicator flickers;4. Choose ' Confirm the indicator is blinking slowly' and tap' Next'5 . Enter the 2.4G WiFi name and password (kindly note that don't enter the device's hot spot name here) and choose 'Next' , then choose 'Connect now';6. Jump to the WLAN page automatically, if not, kindly click the WLAN settings: the WI-FI settings on your phone and connect to the "Treatlife-SL-xxxx" or 'SmartLife-xxxx' network (Aftering connecting to device's hotspot “TreatLife SL-XXXX”or 'Smart Life-XXXX', about 2S, device's hotspot will show “No internet connection”, this is right, don't care it and proceed as follows in step 8);7.Go back to Treatlife APP manually and wait for the connection to complete, if when you go back to the Treatlife APP, it doesn't jump to connection page, kindly choose 'Confirm hot spot connection, next' and wait for the connection to complete.Connect the Sensor/Detector to APP:1. Tap the 'Smart Hub' and enter the Hub's control page; 2. Choose 'Zigbee device list' and then choose 'Add new devices';3. Press and hold the on/off button 5 seconds until the led indicator of sensor/detector flickers;4. Click the sensor/detector will detected by the APP and wait for the connection successfully.