|  | Single 
                                  phase watt-hour meter (cyclometer) DDS566    
                                  series single phase watt-hour meter    
                                  (cyclometer) is used for active energy    
                                  measuring ......
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                                |  |  | 
                                
                                |  | Single  
                                  phase watt-hour meter (LCD) DDS566    
                                  series single phase watt-hour meter (LCD) is    
                                  used for active energy measuring ......
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                                |  |  | 
                                
                                |  | Three 
                                  phase watt-hour meter (cyclometer) DTS566    
                                  series three phase watt-hour meter    
                                  (cyclometer) is used for active energy    
                                  measuring......
 | 
                             
                                
                                |  |  | 
                                
                                |  | Three    
                                  phase watt-hour meter (LCD) DTS566 series three    
                                  phase watt-hour meter (LCD) is used for active    
                                  energy measuring......
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                                |  |  | 
                                
                                |  | Three    
                                  phase multi-functional watt-hour meter Three phase multi-functional    
                                  watt-hour meter is used for active and    
                                  reactive energy with TOU......
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                                |  |  | 
               
                                
                                |  | Three  
                                  phase multi-functional watt-hour meter (Ⅵ) Three phase multi-functional    
                                  watt-hour meter is used for active and    
                                  reactive energy with TOU......
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