The best replacement for flir is fluke.

The best alternatives to flir are rated as following:
★★★★★  fluke
★★★★★  night vision
★★  irnv
★★  atn
★★  thermal imaging
★★  nvg
★★  testo
★  sifr
★  cufon
  wescam
  thermal eye
  extech

Your alternative for flir is not listed? Suggest!
Speaking about flir, one probably shouldn't forget about uav.

Other search terms related to flir and their ratings are:
★★★★★ uav
You have in mind a companion for flir and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of flir in all years. Click on graph for more.
flir
fluke
night vision