Thermoscan Hm-2 Manual -
If you prefer the official scanned document, here are the best places to look:
However, measuring shiny metals (aluminum, copper, stainless steel) will yield inaccurate readings because their emissivity is low (0.10–0.30). thermoscan hm-2 manual
The Ultimate Guide to the Thermoscan HM-2: Manual, Operation, and Troubleshooting If you prefer the official scanned document, here