Well compared the the 500 and 3000 models from Grasbey these are a little more fragile. The only thing that let Grasbey down was their R&D or should I say the lack of it and how quickley parts were delivered.
These I have to say were not our first choice as we as engineers look at ease of repair, simple circuitry including none of these stupid smart batteries and ruggedness. Clinical issues are someone else's fortee.
