Multimeter Tester Pen Voltage Detector Automatic Tester Pen Voltage Detector Electric Tool Electrical Screwdriver Meter resistance measurement tool capacitance tester continuity checkerdiode testing tool test pen electric screwdriver pencil prank for car electrical voltage detector tools pen non-contact with flashlight tester measuring penFeatures:Discrimination of zerofires line: touchthe touchpole with a pentip, where is the firelines and low voltage is the zerolines. Acvoltage, display buzzer alarm. When measuring ACvoltage, the pen tip touches the livewires and the hand touches the touchelectrode on the side to measure the voltage, the simulated earth of human body varies from personto person. Zerofires line identification, fast and highly sensitive distinction. Zerofires line identification, touchthe touchpole, insert the nib metal into the hole, the screen is the linewith rapid buzzer sound, and the green screen is the zerolines with weak voltage and no alarm sound. Led lighting function. With led flashlight lighting function, no matter what environment, it can clearly illuminates, eliminating the danger of electric shock and assisting night measurement. Two-colors digital display color screen, realtimeprompt. Two-color screen, warning sound prompt, two-color to distinguish zerofires line, fast resolution. Green is judged as zerolines, and is judged as firelines. A word batchhead, hardness, solid and more screw atanytime. The pencil holder design makes it more convenient to carry around. The detachable pen cap can prevent electric arcfrom creeping. Specifications:Material:Plastic Size:Approx.16.64x2.96x1.8cm 6.55x1.16x0.7inch