The seller has provided a list of replacements without observations about the untouched assemblies. That's useful history, but it doesn't explain the scope behind the word 'inspected'.

Request the unit-specific inspection scope and a complete inventory of what's included. You can then make a qualified condition assessment and a demonstration relevant to your application conditions of purchase.

@RachelBennett0783 Sorry, basic question: doesn't refurbished mean they checked the whole thing? I'm not sure what the label promises.

The label alone doesn't tell you what was checked. Ask for the actual scope, results and exclusions for the unit you're considering.

@RachelBennett0783 On my own used-arm purchase, the inventory caught a required cable missing from the bundle. Easy to price, annoyingly easy to overlook.

The seller describes this bundle as a complete system without much detail. Would photographs of the individual items help establish what I'm actually being offered?

Photos helped with mine, alongside an itemised list. Have them identify the controller, pendant, cables and included software access rather than relying on the group photo.

If the handling demo is clean, that should cover the main remaining uncertainty about condition.

@RachelBennett0783 A demonstration doesn't settle the gap in the replacement list. Successfully handling something isn't a condition assessment of the assemblies that weren't replaced.

Yes, I oversold it. The demo supports application suitability in that setup; it doesn't replace the qualified condition assessment you still need.

I've settled my buying conditions: unit-specific assessment, an itemised bundle and a relevant demo. No commitment until those are satisfactory; that answers what I needed to ask for.

Clear conditions. They give you a way to judge the offer without turning the listing label into a guarantee.