Appologies if this is old news but I couldn't find it -
"Fluke Corporation has identified a safety issue affecting certain Amprobe brand AM-500-EUR, AM-500-EUR KIT, AM-510-EUR, AM-510-EUR KIT and HEX60-D Digital Multimeters,when used in CAT III electrical installations above 250 volts. (MEASUREMENT CATEGORY (CAT) III is applicable to test and measuring circuits suitable for connection to the distribution part of a building’s low-voltage mains installation.) As a precautionary measure, Fluke has decided to recall all the affected products and provide affected customers with a no-cost repair."
The info is at
https://www.beha-amprobe.com/en/announcements/safety-warning-please-readimportant-product-safety-recall-information-regarding(if this is old news this post can be culled, I figure it's better to have it twice than not at all)