Exhibit 21.1

Subsidiaries of Sensata Technologies B.V.



|                                                                   |  |  |  |                              
|------------------------------------------------------------------ |  |  |  | -----------------------------
|Name                                                               |  |  |  | Jurisdiction of Incorporation
|                                                                   |  | 
|Sensata Technologies Japan Limited                                 |  |  |  | Japan                        
|                                                                   |  | 
|Sensata Technologies Malaysia Sdn. Bhd.                            |  |  |  | Malaysia                     
|                                                                   |  | 
|Sensata Technologies Holdings (Korea) Limited                      |  |  |  | Korea                        
|                                                                   |  | 
|Sensata Technologies (Korea) Limited                               |  |  |  | Korea                        
|                                                                   |  | 
|Sensata Technologies Holland B.V.                                  |  |  |  | The Netherlands              
|                                                                   |  | 
|Sensata Technologies Holding Company Mexico B.V.                   |  |  |  | The Netherlands              
|                                                                   |  | 
|Sensata Technologies de México, S. de R.L. de C.V.                 |  |  |  | Mexico                       
|                                                                   |  | 
|Servicios Administrativos Sensata Technologies, S. de R.L. de C.V. |  |  |  | Mexico                       
|                                                                   |  | 
|Sensata Technologies Finance Company, LLC                          |  |  |  | United States                
|                                                                   |  | 
|Sensata Technologies Holding Company US B.V.                       |  |  |  | The Netherlands              
|                                                                   |  | 
|Sensata Technologies, Inc.                                         |  |  |  | United States                
|                                                                   |  | 
|Sensata Technologies India Private Limited                         |  |  |  | India                        
|                                                                   |  | 
|Sensata Technologies Singapore, Pte. Ltd.                          |  |  |  | Singapore                    
|                                                                   |  | 
|Sensata Technologies Taiwan Co., Ltd.                              |  |  |  | Taiwan                       
|                                                                   |  | 
|Sensata Technologies Hong Kong, Limited                            |  |  |  | Hong Kong                    
|                                                                   |  | 
|Sensata Technologies International Trading Shanghai Co. Ltd.       |  |  |  | China                        
|                                                                   |  | 
|Sensata Technologies Spain, S.L.                                   |  |  |  | Spain                        
|                                                                   |  | 
|Sensata Technologies France SAS                                    |  |  |  | France                       
|                                                                   |  | 
|Sensata Technologies Germany GmbH                                  |  |  |  | Germany                      
|                                                                   |  | 
|Sensata Technologies Sensores e Controles do Brasil Ltda           |  |  |  | Brazil                       
|                                                                   |  | 
|Sensata Technologies Changzou Co. Ltd.                             |  |  |  | China                        
|                                                                   |  | 
|Sensata Technologies China Co, Ltd.                                |  |  |  | China                        
|                                                                   |  | 
|Sensata Technologies Italia S.p.A.                                 |  |  |  | Italy                        
|                                                                   |  | 
|First Inertia Switch Ltd (U.S.)                                    |  |  |  | United States                
|                                                                   |  | 
|Control Devices, Inc.                                              |  |  |  | United States                
|                                                                   |  | 
|CDI Netherlands B.V.                                               |  |  |  | The Netherlands              
|                                                                   |  | 
|RDI Management Company, Inc.                                       |  |  |  | United States                
|                                                                   |  | 
|CDI Holding International SAS                                      |  |  |  | France                       
|                                                                   |  | 
|First Technology Europe SAS                                        |  |  |  | France                       
|                                                                   |  | 
|FTCP Holdings Ltd.                                                 |  |  |  | United Kingdom               
|                                                                   |  | 
|First Inertia Switch Ltd.                                          |  |  |  | United Kingdom               
|                                                                   |  | 
|FTCP Bermuda Ltd.                                                  |  |  |  | Bermuda                      
|                                                                   |  | 
|First Technology Dominicana Holdings, SA                           |  |  |  | Dominican Republic           
|                                                                   |  | 
|First Technology Dominicana, SA                                    |  |  |  | Dominican Republic           
|                                                                   |  | 
|First Technology (Europe) Limited                                  |  |  |  | United Kingdom               
|                                                                   |  | 
|SMaL Camera Techologies, Inc.                                      |  |  |  | United States