In electrical testing, test probes connect a device under test (DUT) to a meter or test equipment. A cable or test lead connects the probe to the tester and transmit signals from the device to be analyzed or measured. Test probes come in a variety of types. Some probes, called alligator clips, have two jaws that clamp directly onto a feature of the DUT for taking measurements. Another type of probe is a circular clamp that does not directly touch the cable or wire under test. Some probes are sticks or pins that can be pressed against a part of the DUT for testing. A flexible probe wraps around the element to be tested.