① To add a sensor, you need to press the Reset Button behind of Smart Hub which could make the registration-mode is on. Th en, the Smart Hub beeps, and the color of a LED light of Smart Hub turns into Blue Flashing. The Registration mode is only vali d within 1 minute. ② Open the cover of a sensor, and input the batteries included in the sensor package box to complete its registration. ③ You will see a newly registered sensor on the Sensor List of RayHome app when you complete it successfully.
