New to me ammeter

[Big Ray]

I watched Roadkill Friday night, Steve Dulcich pulled out a nifty old craftsman Inductive Ammeter.
I thought that would be pretty handy, so I went on fleabay.
NAPA still sells new ones, $10.
Got mine today...

 

[Big Ray]

They were checking current draw on a dual e-fan setup they were using.
75 amp startup, 35 amp during use. Both fans. They used a double 40 amp relay rig on it.