Currently, I am mainly in charge of inspection work for distribution and control systems. I write reports on this desk, make small PCBs, harnesses, cables, etc., repair and adjust.
Since the inspection of the control panel is the main, I use many measuring instruments and checkers used for those inspections. Voltage, current, resistance, capacitance, dimensions, coating film thickness, insulation resistance, withstand voltage, etc.
As for the checkers used for continuity inspection, I made about 20 of various circuits and types. There are many of them in the desk drawer. Although not shown in the photo, there is also a U1242A.
That's why handheld devices are available to some extent, but desktop devices aren't at all, so I'd like to improve them anyway!
It's a pity that we can't introduce the whole thing because of a little confidential information.