Eb-320ps Portable Exposure Machine. Not Tested. Please Read

Building A New DIY Exposure Unit Screen Printing Halftones

I'm listing it as used, because I'm not sure. I'm listing it as used, because I'm not sure. The unit looks like either used lightly or has not been used before. 32 X 7.9 X 55 In (3). The unit comes on when plugged in, but beyond that I have no knowledge how to use and test the machine.