Testing of new EMUs for the São Paulo metro has begun. To minimize risk in real-time, the EMUs have had derailment detection sensors installed on their bogies and internal and external CCTV has also been fitted. Sunell 5000PCS 1.3MP and 3MP IP mini dome cameras protect the metro’s security. São Paulo state’s minister of transport Claude Aldo said the new trains will be more efficient and improve passenger convenience.