With the testing device 70241-2, you can comprehensively, quickly, and reliably check the trailer socket on vehicles with 7 or 13 pins. Whether it's simulating turn signal faults or checking LED compatibility, the testing device 70241-2 makes it easy for you to perform a thorough check of all functions on 13- and 7-pin sockets. A high-quality membrane keyboard with a clear pressure point is effective even under the toughest workshop conditions. Thanks to the extra-long cable, you can conveniently start the test from the driver's seat. All of this is housed in an extremely robust casing that is resistant to oil, fuel, and other substances.