The P6616 is a general-purpose Logic Probe offers two eight-channel pods. Each channel ends with a probe tip featuring a recessed ground for simplified connection to the device under test. The coax on the first channel of each pod is colored blue making it easy to identify. The common ground uses an automotive-style connector making it easy to create custom grounds for connecting to your device. When connecting to square pins, the P6616 has an adapter that attaches to the probe head, extending the probe ground flush with the probe tip so you can attach to a header.