Function: lighting function Screen: LCD Measuring range: 12-1000V Measurement method: zero contact induction function Power: 50/60HZ Working environment: 0-40 Battery: 2*1.5V AAA Lighting: Yes Sound and light alarm: Ye Air detection Put it on the outer skin of the line, you can send out an alarm signal Zero line fire line detection In general, when the signal is bright red with three bars, the electric pen detects the live wire, and when the signal is bright green with three bars, the electric pen measures the neutral wire or the ground wire. Sound and light alarm: alarm sound and light flashing The display will change with the intensity of the sensed voltage signal, and the buzzer will also change with the intensity of the voltage signal Flashlight lighting Long pre the blue button to turn on the flashlight lighting function, easy to measure in the dark environment Automatic shut-down After about 3 minutes without induction signal or without any operation, the instrument will automatically shut down High and low sensitivity switch The default is low sensitivity at boot LO is low sensitivity: 48-1000V Hi is high sensitivity: 12-1000V