Silver Sensor with 26 feet (8.0 meters) wire.
Sensor Size: Diameter = 21 mm (0.83 in), Length = 18 mm (0.71 in).
It can be used as rear or front sensor for our 6 and 8 Sensor Parking Systems.  
 
Note: this sensor with 26 feet (8.0 meters) wire will not work on our 4-sensor systems. Using it on our 4-sensor systems will cause continuous beeping sound problem.
It will only work on our 6 or 8-sensor systems.  
 
Note: This item is to be used as spare or replacement for the parking sensor systems you bought from our Web site only. Therefore we don't recommend you use it with other parking sensor systems you purchased from other sources because of compatibility issues.