My FLIR is the TG165 which is discontinued, now they sell the TG165X.
TG165: IR res 80 x 60, 9 Hz, LCD res 176 x 220
TG165X: IR res 80 x 60, 8.7 Hz, LCD res 320 x 240
The TG165 works well enough for me so far (using the finger method when desired).
If I really needed a better one I would buy one.