Used MVE / Ortec Model AL-30 Liquid Nitrogen Dewar, 30-Liter for Detector. Appears in fair condition from our visual inspection. We do hear what sounds like a fair amount of fine sand moving around on the inside of the walls. We do not know how much this will effect performance as we were not the user.Thanks for looking - we appreciate your business! Other than what's displayed in the images accompanying this listing or mentioned in the description above, there are no manuals, instructions, additional parts or accessories. Powered by SixBit's eCommerce Solution. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Test Meters & Detectors\Radiation Detectors"." and is located in this country: US. This item can be shipped worldwide.