Unit Instruments 9000Series Mass Flow Controller – 6L He Model: UFM-9660 This unit was pulled from a working environment. The unit is used and has some scuffs and scrapes from normal wear. Only what is pictured is included in this listing. Classification: Used good condition key functions working. At the end of this device’s life please recycle responsibly with R2 Certified Recycler. Please allow extra days to clear if you pay by an eCheck. We guarantee our items for 30 days unless otherwise stated in listing. If manuals, software, packaging etc. Are not mentioned, they are not included. Powered by SixBit’s eCommerce Solution.