RARE Pulse Engineering Inc Pulse PEI Power Supply Test Unit 110VAC Model# 3015 Got this from a government lab. Some sticker residue and sticker on front of unit. Some marker writing (all as seen). These are very hard to find on-line. You will know if you need this or not. If your unit works, you better get this anyway as a backup. Did not get to power this on (not the right connections), but this will work or money back. I don't know much about these. But I will try to answer your questions the best I can..... Please note-** May have to do some calibration or minor repairs to work perfectly. FREE US 48 Shipping!!!! Will ship international - we get excellent international rates through DHL - please contact me for a quote..