All equipment sold by Scientific Instrumentation Services comes with a 30 day customer satisfaction return policy, unless stated otherwise. Not responsible for damage incured to instrumentation, or equipment, by the buyer or shipping service. Payment for winning bid or purchase must be paid within 5 business days or transaction will be terminated, and item re-listed. Price does not include shipping or insurance. Scientific Instrumentation Services specializes in Electron and Photon Optics, sales and service. Our expertise is primarily with Philips and FEI TEM's, however we also refurbish and resale many other types of science equipment. S.I.S. is based in Austin TX, and has been in business since 1991.