Not on its own.
The FlexMT had
M= Mifare Classic
T= T5577
If you were to get the FlexUG4, you get
Gen4 of the Ultimate Magic Chip which, as of a week ago has just been relaunched with a new and improved antenna.
I dont have the new one to compare range, but by all accounts it is vastly improved.
(Although I need one, as my UG4 is the original antenna and can be hit and miss with some readers)
If I get a new one, I’ll do a side by side comparison.
For your EM, You will also need the T5577 functionality with something like an xEM
or
FlexEM (for better range)