【Non-Contact & Safe Voltage Tester】 - Please press the power button for 2 seconds to switch it on. Testing can be achieved without physical contact for its NCV Inductive Probe; Insulation operation ensures the safety of testing; In testing AC voltage, it can automatically detect the live wire or null wire; Intelligently identify Electric Field; In the vicinity of the voltage to be tested, the pen will give a buzzer alarm；Safety Compliance：CAT.III 1000V CAT.IV 600V；CE
【Phase Sequence Tester】After testing three phase lines,the screen displays the results,“R”shows positive phase sequence, “L”shows negative phase sequence, otherwise it`s phase loss.
【Adjustable Sensitivity & Dual Range Testing】 - Adjustable sensitivity makes its measurement more sensitive and flexible; The Voltage Tester Pen has the dual testing range(12-1000V AC or 48-1000V AC); Automatic Recognition of Voltage Intensity; In using, the NVC sensor of probe can automatically identify the voltage and show it on the LCD screen, simple and clear
【High-Definition LCD Screen & Low Battery Indicator】 - When testing the voltage, the brightness bar on the screen will show the voltage intensity; The screen will light up in red or green to distinguish the Live/Null Wire; When the battery voltage drops to less than 2.5 V, the flashlight of LED display reminds you to replace the battery
【Buzzer Alarm & LED Flashlight& Auto Shutdown】 - A white LED flashlight with high brightness and low power consumption helps in illuminating the workspace in dark; The lighting lamp and the probe are combined together, convenient for measuring; The buzzer alarm is loud;Triple alarms of sound, light and screen display for testing ; After about 3 minutes without any operation or signal detection, the voltage detector will be automatically shut down。