Bosch Professional GIS 500 Thermo Detector- Overview with Sample Test Results Compared with GTC 400

This is an overview and first impressions of my Bosch Professional GIS 500 temperature measuring device. The video includes sample tests of its 3 emissivity settings with comparison to my Bosch GTC 400C thermal camera. This is to get a better context on the temperature readings. Although this isn&an indepth review and discussion of its technical details, I hope this provides some starting point for those interested to know more. As of this posting, the manufacturer has provided the user&manual for free download at their website. The GIS 500 is a fine instrument from Bosch. Within its operational parameters, I did its job quite well in my test. Comments are welcome. Stay safe, everyone!