Code point
U+3393
Glyph appearance depends on your fonts.
U+3393
So<square> 0047 0048 007AU+3393 SQUARE GHZ is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+3393
13203
㎓
㎓
E3 8E 93
3393
00003393
%E3%8E%93
\u3393
\u3393
\u3393
\3393