MDL ESI-1000, PN 9200-32000-( )( ) where 9200-32000-0101 is the first in a series, Model ESI-2000, 9200-32500-0011 [Fixed Wing, GModelrey Bezel], Model ESI-2000, 9200-32500-0021 [Fixed Wing, Black Bezel], Model ESI-2000, 9200-32500-0031 [Rotorcraft, Grey Bezel], Model ESI-2000, 9200-32500-0041[Rotorcraft, Black Bezel]is first in the series, ESI-1000, 9200-32100-( )( )( ) where 9200-32100-0101, 9200-32100-0201, 9200-32100-1001are the first in a series,