If you don’t yet have a hand-held infrared thermometer, they can be a handy device for insuring that all those cracks and crevices are reaching the temperature that is fatal for the bugs. Unfortunately, most of the devices you will find in the hardware store typically have accuracy of plus or minus 10-15 degrees F. That isn’t accurate enough to help in a bed bug application.
But we just became aware of a very reasonably-priced meter from Fluke Instruments. Their model 62 MAX+ is accurate to plus or minus 2 degrees and is available on the web for under $90. We just got one and it seems to do a great job.