Here's a really cheap multimeter I ended up with that has a separate on/off switch. Note that the markings are actually printed on a piece of colored paper and stuck on the front of the case and could just as easily be peeled off. Inside it has almost no protection and I only use it for low voltage D.C. where I want a large display
and would never, never use it on A.C. line voltage.
I have two of those exact meters, re-badged for Jaycar in Australia, and have used them for everything
sacrificial including 240 volt AC voltage checks,
and they still go strong 15+ years later, and easy on the 9v batteries.
The leads are cheap crap, but usable after a bit of TLC
They are also theft proof, unlike the Flukes
that attract beer impregnated tradies and suss ice/crack heads, like models on a catwalk
Still, I look where the leads are plugged in and where the rotating selector is parked, before I hit the BANG! potential switch