This is a vintage Superior brand multi-meter model 640 industrial analyzer that can measure resistance, AC current, DC voltage, and AC voltage up to 750 volts and amps. The display is analog and it has a benchtop form factor.

this was listed for parts are not working only due to the simple fact I honestly do not know how to test this item will be packaged very well and shipped via USPS or FedEx all of my items shipped within 12 hours of payment clearing if you notice in the photo of the box does show some flaws on itI try not to send items that disappoint people so please check the photos out before you buy thank you very much