The RVG sensor is radio-sensitive. The active surface of the RVG sensor is the flat surface marked with #1 or #2 indicating the size of the sensor. (For RVG 142, only one sensor size is available.)
The following table summarizes RVG sensor type, size and typical usage:
| 
               Type  | 
            
               Size  | 
            
               Use  | 
          
|---|---|---|
| 
               RVG 142  | 
            
               Size 1 (universal RVG sensor)  | 
            
               Regular periapical and retro-coronary procedures.  | 
          
| 
               RVG 142  | 
            
               Size 2  | 
            
               Bitewings and periapical procedures.  | 
          
The non-reactive surface of the RVG sensor is rounded and contains the cable attachment.
Figure 1 RVG Sensor
    | 
               1  | 
            
               Active surface of the RVG sensor.  | 
          
| 
               2  | 
            
               Non-reactive surface of the RVG sensor.  | 
          
| 
               3  | 
            
               USB 2.0 connector. Note: For RVG Connect, there is a specific RVG 6200 sensor with a magnetic USB 2.0 connector (see RVG Connect Overview).  |