Check the listing for details. Test Probe Pin Set, Multimeter Extention Probe Needle, Multicolor. Condition: New. Listed at 10.92 USD. This test probe pin is used for replacing the head of the probe during the inspection and maintenance of the power system. It is widely used in electrical maintenance, automatic electrical equipment, physics teaching, laboratories and other places for testing and debugging.SpecificationColor: Gold, Silver, Black, RedMaterial: Copper, PVCPin Thread Size: M2.5Total Length: Long: 33mm / 1.3", Short: 25mm / 0.98"Pin Diameter: Long: 1mm / 0.04", Long: 2mm / 0.08"Jacket Withstand Voltage: 600V, 1000VPackage List: 4 x Probe Pins (Long), 4 x Probe Pins (Short)AdvantageThe probe pin is made of copper, it has stable conductivity, not easy to rust, convenient to assemble it.Moreover, the probe pins and jackets are light and compact, which is easy to store and carry outside.InstructionConnect it to the test probe, then test the machines with the pin.