16ft 4-Pin Waterproof Extension Cable（ECS-6）
 
The ECS-6 extension cable is simply a 16 ft extension cable compatible with the WCS-1/2 moisture content sensor, ThinkGrow LED fixtures, and Smart Light Lifters. It has a male and female end and can extend the distance between the WCS-1/2 module and the sensor probe or ThinkGrow LED fixtures and Smart Light Lifter.