The Amprobe TL35B test lead set contains two silicone-insulated lead wires with two threaded probe tips and two threaded alligator clips for connecting a compatible electrical test meter to a device in electrical testing applications. The 40" lead wires have polyvinyl chloride (PVC) insulation to help protect hands from shock and heat, and they have standard probe tips that are held against the conductor during testing. The alligator clips (also called crocodile clips) screw onto the probe tips and have teeth that grip the conductor to provide a more secure, hands-free connection than the test probe tips. The clips have two jaws with a 0.60" jaw opening. The probe tips and the included alligator clips are threaded, allowing for a more secure connection than non-threaded tips and clips. The lead wires can be used with testing devices that have universal 4 mm jacks. The set meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for category III installations up to 1,000V, which covers items used with enclosed building circuit installations (such as service panel parts, branch circuits, and fixed installations that are connected directly to a building's AC power supply). It conforms to applicable European Conformity (CE) directives.

A test probe, test lead, test prod, or scope probe transmits an electrical signal to a testing device for display and analysis. Designs range from simple test leads with probe-style or clamp-on tips to more complex oscilloscope probes and current detectors. Some test probes, such as basic test leads, have wires with tips for connecting to test equipment. Other test probes, such as voltage detectors, are built into the meter. Depending on what is to be tested, the probe might either be passive or have active parts that require external power to operate. Some probes require contact for testing, while some are capable of taking measurements from a distance. Some also have finger barriers, insulation, or other features to help protect the operator's hand from electrical shock and burns. Test probes are rated according to the amount of voltage, current, temperature, or other input they can measure. When choosing a test probe, the maximum amount of input that the probe can measure should match or exceed both the maximum amount that can be tested by the test equipment, as well as that of the property expected to be present in the application.

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.

What’s in the Box?

• (2) test leads
• (2) alligator clips