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V. Structure
1
LCD screen
4
MODE
VI. Symbols
1
Year-Month-Day
2
AM/PM
3
HCHO
4
HCHO value
5
HCHO max value
2
Setup
5
USB port
6
Temperature icon
7
Temperature unit
8
Temperature value
9
Battery icon
10 Time
3
ON/OFF
11
HCHO unit
HCHO Grading
12
emoticon
13
Humidity icon
14
Humidity unit
15
Humidity value
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