If you are a gigging muso, whether doing live gigs or studio sessions, it makes sense to get your electrical equipment tested on a regular basis. Although this is (still) not a legal requirement, (why I don't know)? Most insurance conpanies require it, and a lot of venues won't even let you set up without a current PAT certificate. Not just a load of wee stickers bought from Amazon and stuck on all your plugtops.
If you need your equipment tested I can do that for you. Just get in touch for a chat and a quote.
Raymie