Connect the LCD

Remove the battery.

Connect the LCD display in the FPC connector

Install the battery; the LCD should display readable numbers.

Solder the sensors

Remove the battery.

Solder the rest of components. The sensors should be soldered with reflow technology.

Install the battery, the LCD should display reasonable values. Check the operation of the tactile switches.

Final assembly I.

Install the LCD, and the main board in the upper side of the case; the LCD should fit in it’s place. The PCB will be kept in place by the small grips.

Final assembly II.

Install the buttons into the bottom side of the case. Carefully push the top and bottom parts together, paying attention to the position of the buttons.

The Result