How far down a line will the ET64220?

Depending on how many breaks/splices are in the wire, people have been able to trace wires across extremely large warehouses and stores. The more splices there are in the wire being traced, the weaker the signal is going to get down the line. Rule of thumb is for every spice in the wire, the signal is getting cut in half.

Can the LAN tracker trace a wire behind drywall to determine if there is a break in the wire?

This depends on how far behind the sheetrock the wire is, the type of wire it is, if it is in conduit or not, how thick the sheetrock is, and how new the batteries are in the testers. As the batteries in the tester weaken, the signal being sent is weaker and the transmitter has a harder time picking up the signal. If the sheetrock (drywall) is extremely thick or even doubled up, that is going to affect the receiver’s ability to pick up the signal. If they are trying to trace BX wire (wire in an armored sheathing) or if it is in conduit, it will not be able to detect the wire. These metal encasements will block out the signal being sent and the transmitter will not pick anything up.


This tool is much like the ET64220 but with a much stronger tone to help deal with interference. This unit does not come with multiple adapters for your basic end-user applications and is geared more towards the pro side. The transmitter has three different distinctive tones you can choose from alone with a continuity test that lights up an LED when continuity is found. The receiver has a volume control dial and a button to press when searching for tone. It also has a light near the tip to indicate its find the signal from the transmitter if the sound is set low.

Each unit operates using two 9volt batteries. The battery cover on the receiver is located on the back of the rubber handle and is held on with one screw. The transmitter’s battery cover is located on the back of the unit. The clip on the back of the transmitter is the battery cover and it is held in place by 2 screws. These batteries can only be placed in the tool one way, so a diagram isn’t needed but one is on each unit to show where the batteries are located.


The Wire Tracker is a wire tracer with multiple adapters for different wire tracing applications. It comes with a transmitter that holds all of the adaptors and a receiver that fits tightly into the case of the transmitter. Using the tool is very easy; open the back to access one of the many adaptors. Pick the one that best suits your application and connect it to the desired wire location. Flip the unit over and you’ll see a small black button on the front, once you hit that button a light will begin to flash at the button of the unit. The light indicates that the transmitter is now continuously sending out a signal for the receiver to find.

In order to operate the receiver; adjust the volume control on the top of the unit for your desired sound level. After you’ve adjusted the volume you’ll find there is a button located behind the volume dial. While holding that button down, hover the receiver over one of the transmitters many adjustments. You should be able to hear a tone depending on how loud you set the receiver for.

This tool uses two different styles of batteries; one set of four LR44’s for the receiver and one set of two AAA’s for the transmitter. The transmitters cover is located under the adaptors on the back of the transmitter. Turn the transmitter over and push the adaptors to the side, you’ll notice a small black tab. Remove the tab and insert the batteries positive side first.

The receiver’s batteries are located at the end of the handle. The battery cover has the type of battery and the direction that the batteries are supposed to be installed engraved on its face. With the tool in your dominant hand use your thumb to push the cover away from you and it should slide off. Once the cover is off insert the batteries per the covers instructions and replace the cover.


There are two parts to this tester, the transmitter that has the on/off switch and the receiver that has the indicator lights. When you turn the unit on the power button should blink, this is telling you that the tester is sending out a continuous signal to its other smaller counterpart. It will keep sending out that signal until it’s turned off. No matter what you are testing it will send the same signal starting with the data cable (RJ45) test and ending with the TV cable (Coax) test. It sends this test out one set of cables (pairs) at a time and every time it finishes it restarts until it’s turned off. This means that each LED will blink once in series starting with 1-2 and ending with Coax depending on what you’re testing.

The LED’s will tell you what the test results are for what you’re testing. Green means it’s good and red means it’s reversed or bad and needs rewired. If there isn’t any light indicator that means there is a break or short somewhere in the connection that you will have to fix. If you test the cable and it works but the LED did not flash indicating a short you should check the battery or return the product for warranty replacement, sometimes the LED’s go bad. Always test the cable by itself, never run it through a switch or a hub. Anything with power on it can burn out the LED’s on the tester and render it unusable.

Remember that no matter what, when you turn the tester on, it constantly sends out a signal no matter what you’re testing. A good example would be to plug in both types of cables, turn the device on and watch the LED’s. All of them will blink one at a time in series and continue to do so until turned off.

The Battery compartment can be found in the transmitter, that’s the larger of the two parts. Unscrew the back and you’ll find a spot to place the 2 triple A batteries. Once the batteries are in place you can replace the cover; you can slide the two units together for storage or for transport.