To add widget, follow the following steps:
Android OS version 3.x or below:
Choose an empty space on the Home screen (1x1).
Tap the space and hold your finger there (long press) until the menu appears.
Alternatively, you can press the “Menu” button and then press the “Add” button that should now be available on the screen.
Both methods should have resulted in a pop-up menu-window labeled “Add to Home screen”. Tap the menu item labeled “Widgets”.
Then select "CK SG PSI" to add the widget.
Android OS version 4.x or above:
Touch the All Apps icon on your Home screen.
Touch Widgets at the top of the screen.
From the main Widgets screen, you can swipe left or right till you find CK SG PSI.
Touch and hold CK SG PSI widget's icon, slide your finger where you want to place it, and lift your finger.
Tap on widget to get the latest reading.
If you encounter Error loading widget after the update, please remove the widgets and add them again