Check the listing for details. KURZ 155JR Series 155 ADAM Mass Flow Computer. Condition: Used. Listed at 75.00 USD. Selling a Kurz Model 155JR Mass Flow Computer. This unit was received surplus and its history is unknown. The front panel has some scuffs and scratches. However, the mounting ears are still stowed and the electrical hubs don't appear to have been used and it still has the manufacturer's tag on it. It is possible that this unit was never placed into service but selling as used just in case. The unit has been powered up and I confirmed that you can navigate through various menus and settings (refer to photos) but I do not have any compatible instruments to test further. Info from the labels: Serial number is 6345Item number is 0008160Purchase Order 108206 Part number is 750101-04018804 01888801010001 also written as 75101_04_01_88_04_01_01_88_01_01_00_01Label comments say used with 502 S/N: MD1871A Set up for 110 volt / 60 Hz. For any application questions, please consult the manufacturer's information. For any questions on the listing, please contact me ans I'll do my best to answer them. Thanks for looking!