I’ve always got a tape measure in my bag, it’s really useful when measuring up on site. Also a torch for looking into dark ceilings and basements. Some specialist equipment we have is a device for measuring the amount of light on a desk or floor, we use this to check we have put enough lights in a building.
We use computers a lot to model designs and draw up plans, I spend 70% of my time at a computer.
Multimeters, soldering iron, oscilloscope, signal generator, power supply, oh wait snap!
Also logic analyzer, network analyzer, spectrum analyzer (basically big white boxes of electronic stuff).
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