This is a pressure indicator used on Airbus aircraft and possibly other types as well. This one has a parts tag showing removal from China Air N102EV on 5/28/05 during tear down and has been in storage since. It is in very good condition without damage to the housing or connector. The lens is not cracked and needles are in place. The data plate reads JAEGER, PRESSURE INDICATOR, REF/PN 64820-409-1, CODE 65-421-091-00. It is not tagged and I have no way to test it so it is being listed AS IS. Thank you for looking and please see our many other aviation auctions.