I looked this up quickly today, and it seems they are not CSA (ULc) approved in Canada. Just so members know, but they should do their own more thorough research than my quickie search on them as I was most interested myself.
Miamicuse notes they are UL (USA) listed, and unless I’m misremembering that’s accepted in Canada.
I like them testing the wiring setup of speakers and crossovers I’m building. Fast to use, compact, and doesn’t damage the wire the way wire nuts do.