Premium Quality: The handle of the circuit tester is made of plastic and the hardened & tempered carbon steel probe is chrome plated. The sharp steel probe easily pierces wire insulation to check circuitry. Test Range: Automotive Circuit Tester Used to Check Electrical Circuits and Accessories on All 6V/12V/24V Systems. Test Light Blub: Light in handle glows when circuit connection is complete, detect faults in low tension circuits of traffic or transport machinery. Innovative elastic wire with fine tensile property. Long Spring Wire: Long spring wire can stretch to about 220cm/ 86.6\\\", and the wire is thicked so that the wire will not burn when the part temperature is increased, which is convenient to use. Wide Circuits Test: This probe pen is ide.
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