Code point
U+2391
Glyph appearance depends on your fonts.
U+2391
SoU+2391 PASSIVE-PULL-DOWN-OUTPUT SYMBOL is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Miscellaneous Technical block.
Choose the representation you need, then copy its value.
U+2391
9105
⎑
⎑
E2 8E 91
2391
00002391
%E2%8E%91
\u2391
\u2391
\u2391
\2391