PurposeUSED TO ADAPT THE CARGO COMPARTMENT SMOKE DETECTOR ORIFICES TO THE HOT WIRE PROBE OF TSI MODELS 1650, 8350, 8352, 8355 AND 8357 ANEMOMETER TO MEASURE THE AIR SAMPLEAirplane747, 757, 767, 777-200, 777-200ER, 777-200LR, 777-300, 777-300ERUsage CodeMAINTENANCE 