429EX DATABUS ANALYZER 429EX DATABUS ANALYZER Ref: 429EX The 429EX tester provides line maintenance personnel and avionics technicians with a convenient, easy to use tool for testing and troubleshooting ARINC 429 avionics systems. The 429EX is housed in a rugged, compact case with internal, rechargeable NiCad batteries. The unit comes with either a 110V or 220V plug-in battery charger. Included: Battery charger, 3-Conductor ¼ phone plugs, operations manual. Applicability : EC135, EC145, EC635, EC645, H135