- Peel screen protector from the display unit.
- Remove batteries located inside the display unit to peel off plastic wrapping, and re-insert.
- Close battery cover.
- Remove batteries located inside the probe transmitter to peel off plastic wrapping, and re-insert.
- Make sure both devices are OFF.
- Power the display unit on first.
- Then power the probe transmitter on second.
- Both devices should now be synced together.