▇ 【C-F】Display unit switch
1. Press and hold "MODE" key 5 sec to enter LEVEL 2
2. Set "LocK=1111"
3. Press and hold "MODE" key + "<" key 5 sec to enter LEVEL 3
4. Set "St-6-3=1"
(Default 0100 was revised to 0110)
5. Press AUT key Back to LEVEL1
(Press and hold "MODE" key for 5 Back to LEVEL1)
6. Press and hold "MODE" key + "<" key 5 sec to enter LEVEL 3
7. Set C-F adjustment unit ( ℃ / ℉ )