1、CLEAR DISPLAY: Voltage tester with LCD HD display, the degree is clearer, test display value is clearly visible at a glance in the dark environment 2、MAIN FUNCTIONS: Voltage test pen can quickly distinguish and detect the AC voltage value, the pen tip contact test AC(leakage) voltage, quickly distinguish the conductor(leakage) voltage, line power failure detection 3、WIDE APPLICATION: Intelligent sensor voltage tester is widely used in mechanical repair, electrical maintenance, home use, automobile repair and so on 4、INTELLIGENT NEUTRAL LIVE WIRE JUDGMENT: Select the neutral live wire distinction function, insert the pen needle into the hole for identification, without traditional contact identification, electricity measurement is safer 5、ROUTE BREAKPOINT DETECTION: In NCV non contact voltage detection mode, the break point position is eliminated along the road when a single strand is charged