Pipe locator often accompanies the pipe wall inspection camera system. It can located the position of the camera which entered into the underground pipe.

Pipe locator with multi-frequency such as: 512Hz,640Hz,33KHz,1KHz,83KHz. When the camera head underground can sent out  these frequency signals,locator can receive it and then sure the camera's position exactly.

Some items with depth function, that make sure the camera's depth under ground.