Short, practical write-ups on sourcing, testing and buying used automation and instrumentation — based on what we see going through our own listings.
What the part number, series and firmware markings on a PLC nameplate actually tell you, and why it matters before ordering a used controller.
Buying GuidesA practical look at where Endress+Hauser and HUSAR flow instrumentation overlap, and where the differences matter for a process retrofit.
InstrumentationThe questions worth asking a seller before you order a used VFD, HMI or instrument — condition, testing, and what 'as-is' really means.
Buying GuidesMore posts coming soon. Have a question you'd like covered here? Send it to us.