Based on your needs, our underground wire locating service in Mankato, MN performs a wide variety of tasks in order to help you get the job done quickly and as safely as possible. What these locators do is rely on the target having a signal placed on them which is then detected by a receiver within the locator. Many utilities transmit a signal when lines are energized and, in many cases, each line has a different signal that easily distinguishes between different lines. In cases where lines aren’t marked, many wire tracers are able to induce a signal onto the line using a transmitter in order to find it. Generally, the target must be metallic in order to transmit the signal.