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The Amprobe TL245A test leads are two silicone-insulated lead wires with two standard probe tips for connecting a compatible electrical test meter to a device in electrical testing applications. The 48" lead wires have silicone insulation to protect hands from shock and heat. The silicone insulation resists melting in hot environments and becoming brittle in cold ones, and it maintains flexibility better than polyvinyl chloride (PVC) insulation. The standard probe tips are held against the conductor during testing. The lead wires can be used with testing devices that have universal 4 mm jacks. The lead wires meet International Electrotechnical Commission (IEC) safety standard 61010 and are certified for category III installations up to 1,000V, which covers items used with enclosed building circuit installations (service panel parts, branch circuits, and fixed installations that are connected directly to a building's AC power supply). They also conform 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.