Digital Logic Probe Appraisal

Elenco LP-560 Logic Probe

The item is an Elenco LP-560 Logic Probe, a handheld electronic testing device. It features a predominantly black plastic casing, rectangular in cross-section, narrowing to a pointed tip with a fine metal probe extending from it. The main body of the probe is approximately 7-8 inches in length. Along one side, 'LOGIC PROBE' is printed vertically, along with the manufacturer 'ELENCO' and model number 'LP-560'. Below this text, there is a recessed panel with several indicator LEDs (red and green are visible) and a small slider switch, presumably for selecting different modes or sensitivities. At the top end, a black cable is permanently attached, which then splits into two wires. One wire is black and terminates in a black alligator clip, while the other is red and terminates in a red alligator clip. These clips are used for connecting the device to power and ground rails of a circuit. Another gray coiled cable can be seen, likely a signal input cable, terminating in a connector that appears to be a 3.5mm jack or similar audio-style connector, though its exact purpose isn't clear without further context. The plastic casing appears to be in good condition with no visible cracks or significant damage, though minor scuffs consistent with typical use might be present. The cables are neatly bundled, suggesting care in storage. This device is designed for troubleshooting digital logic circuits, allowing users to detect logic states (high, low, pulse) at various points within a circuit. Given the visible model number and general design, it likely dates from the late 20th century to early 21st century.