How I used a $170 thermal camera to check my GCFI breaker - and why this one's worth it

I used to think thermal cameras like this were a gimmick, but now they're an essental part of my everyday toolkit.

How I used a $170 thermal camera to check my GCFI breaker - and why this one's worth it
I used to think thermal cameras like this were a gimmick, but now they're an essental part of my everyday toolkit.