Check the listing for details. Valhalla Scientific 2301 Digital 1Ph 115/230v Power Analylzer Programable. Condition: Used. Listed at 359.99 USD. We purchased this from a business inventory reduction sale. They were very honest about all their Electrical devices for sale .This unit was labeled Good Working. We had our in-house electrical Technician run it through all the tests and he gave it a "Fully Passed all Tests". We are also showing the clean great looking internal electronics inside the unit. Purchase with confidence. We will ship right away. This is an electronic device and people have been known to steal parts out of electric devices and return them at the sellers expense. For that reason we will accept returns but buyer will be responsible for all shipping costs and a 20% restocking fee.. If you legitimately want and need a good working unit then don't worry, you will not have to worry about that.