Item Number: DCY-1788 electrical tester pen, Single-pole voltage
tester, 100 to 500V AC
●The one contact neon lamp
voltage tester usually have the form of a screwdriver, it’s a simple piece of
electronic test equipment used to determine the presence or absence of an
electric voltage.
●Screwdriver test pen is a low-cost type of test lamp, let the tip of the
tester contacts one side of the circuit under test, and rely on stray
capacitance and current passing through the user’s body to complete the
circuit. Because a neon lamp takes very little current to light, so we can use
the user’s body capacitance to earth ground to complete the circuit.
●Shanguang produce voltage tester pen out of several materials with different
appearance design according to global customer requirements for more than 29
years.
●A resistant plastic is used for the core which ensures that the blade is held
securely even under high strain.
●We use the Wire-electrode cutting machine to produce the blade, This technique
only our factory have in voltage tester industry in China. this technology to
increase the hardness of a blade, which provides high frictional resistance and
allows the application of high forces.