Honeywell MX9 User Manual page 297

To get this function
~
<
>
:
+
?
_
Press these keys in this order
Blue 9
Blue 7
Blue 8
Orange 0 (zero)
Blue BKSP
(Backspace)
Orange 8
Orange 7
Result / Notes
Tilde
Less than mark
More than mark
Colon
Plus sign
Question mark
Underscore or horizontal bar
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