OBD2 Scanner for Automatic Transmission Temp ?

[Bobs]

Hi all,
I am not the sharpest knife in the drawer when it comes to technical gadgets.
I need to find a cheap(ish) OBD 2 scanner to check the ATF temp for level check after refill.
I thought something like Tourque Pro would do it but if it does, I'm not working it right.
What is a good option?
Thanks