Ex-'i' intrinsic safety proofing tool
by Dipl.-Ing. Martin Krämer

ispark software support transition:
in march 2021 PTB retired from ispark software project giving
back all intellectual and commercial rights to me as the sole
ispark software author and producer.
As a result, some rearrangements with sales and support were
necessary. 

Please contact:  ispark@t-online.de  for details.