Code point
U+240F
Glyph appearance depends on your fonts.
U+240F
SoU+240F SYMBOL FOR SHIFT IN is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Control Pictures block.
Choose the representation you need, then copy its value.
U+240F
9231
␏
␏
E2 90 8F
240F
0000240F
%E2%90%8F
\u240F
\u240F
\u240F
\240F