What's the different between ansi and iec standard? 
                
                
                  
                   
                
                
                  
                  
BLE
            
10,000 Meters/single charge
            
By double click power button
            
Support Android, iOS, Windows, MacOS, LinuxCertifications
        
        
        
        
        
        
        
    
  Water Proof, Dust Proof
        
        Operational from -30° to 80°
      
        
Show connections status
            
Switch Baud Rate
            
Reset Serial Port
            
Adjust Transmission Power
            
        
    
  Models
            
          
        
 OP-BTS-ANSI
         符合 ANSI C12.18 标准
        
            
                
                
                
                
                    
                    
                
            
      
          
        
 OP-BTS-IEC
         符合 IEC 62056-21 标准
        
            
                
                
                
                
                    
                    
                
            
      技术指标
        
            
                
			
                   
              
              标准  
                  
                      IEC 62056-21(IEC 61107)与DLMS<br />ANSI C12.18<br />ANSI C12.18 Type 2
                   
              
                   
              
              Bluetooth Standard  
                  
                      Bluetooth 5.0<br />BLE+SPP<br />2.4G
                   
              
                   
              
              通讯速率  
                  
                      300bps ~ 57,600bps
                   
              
                   
              
              Default Baud Rate  
                  
                      9600bps, supports IEC dynamic baud rate
                   
              
                   
              
              Max Communication Rang  
                  
                      10 Meters
                   
              
                   
              
              磁性连接  
                  
                      磁性引力:N4.0<br />符合 IEC 62056-21(IEC 61107) 或 ANSI C12.18 标准
                   
              
                   
              
              指示灯  
                  
                      2 (Power/Battery, Bluetooth Status, RX, TX)
                   
              
                   
              
              重量  
                  
                      60gr
                   
              
                   
              
              Battery  
                  
                      Li-Po, 3.7V, 1050mAh
                   
              
                   
              
              Battery Charging  
                  
                      4.5 Hours<br />2.5 Hours(fast charge)
                   
              
                   
              
              Standby Hours  
                  
                      72 Hours
                   
              
                   
              
              Working Hour  
                  
                      68 Hours
                   
              
                   
              
              Continuous Communication  
                  
                      58 Hours
                   
              
                   
              
              Hibernate Mode  
                  
                      100 Days
                   
              
                   
              
              IR Radiation  
                  
                      940nm
                   
              
                   
              
              红外通讯距离  
                  
                      0 ~ 80mm
                   
              
                   
              
              红外接收波长  
                  
                      700~1100nm
                   
              
                   
              
              电压  
                  
                      3.7 ~ 4.2V
                   
              
                   
              
              Power Adapter  
                  
                      AC 85 ~ 220V<br />DC 5V
                   
              
                   
              
              电缆长度  
                  
                      1 meters (3 feet 3⅜ inch)
                   
              
                   
              
              外壳材料  
                  
                      聚碳酸脂
                   
              
                   
              
              Protection Class  
                  
                      IP67
                   
              
                   
              
              操作温度  
                  
                      -30°C ~ 80°C (-22°F - 176°F)
                   
              
                   
              
              OS compatibility  
                  
                      iOS<br />Android<br />Linux<br />Microsoft Windows<br />Mac OS X<br />Windows CE
                   
              
                   
              
              USB & Driver  
                  
                      USB Type-C<br />2.0 standard
                   
              
                   
              
            
        Firmware  
                  
                      Upgradable<br />via bluetooth or USB cable
                   
              尺寸
        OP-BTS-IEC
              
                
              OP-BTS-ANSI