This inductive intelligent electric test pen is a multifunction design, that supports alternating current voltage detection, on/off detection, breakpoint detection, battery positive detection, and intelligent identification of zerolines/live lines function. Digital display with green and red dual backlight colors, and with intelligent sound and light alarm function. The meter will automatically be turned off after 5 minutes when there is no induction signal and no operation. This test pen has a flashlight, perfect for working in a dark area, and easy observation of the environment at night. Features: Compact size, lightweight and portable, easy to carry, and does not take up space. Inductive intelligent electric test pen, insulated operation, safer power check, high safety to use. Digital display with green and red dual backlight colors, when the backlight is red, it indicates that the object under test may be unsafe and should be operated carefully. Multifunction design, support alternating current voltage detection, on/off detection, breakpoint detection, battery positive detection, and intelligent identification of zerolines/live lines function. In inductive mode measuring, support detects the magnitude of alternating current voltage, according to the magnitude of the voltage to distinguish between zeroline and live line, or use to find the breakpoint. With an intelligent sound and light alarm function, the display shows U when testing the zeroline, and the buzzer sounds slow; the display shows HI when testing the live line, and the buzzer sounds fast. Wire conduction detection function, the wire is connected normally it will display "--C" and the buzzer sound; if the wire is open circuit, the pen will not respond. Automatic shutdown: the meter will automatically be turned off after 5 minutes when there is no induction signal and no operation. This test pen has a flashlight, perfect for working in a dark area, and easy observation of the environment at night. Specifications: Name: Electric Test Pen Material: ABS Battery: 1 * AAA battery (not included) Voltage detection ranges: AC12-300V Alarm mode: sound and light alarm Probe form: flat long shape Backlight: green and red two-color backlight Zero-live line judgment: according to the voltage displayed on the LCD judgment Signal strength display mode: LCD digital display Signal strength indication: beeping sound from slow to fast, backlight color from green to red, the LCD display value from small to large Flashlight: Yes Automatic shutdown: about 5 minutes no operation, no induction signal Battery under voltage indication: Yes Item size: 157 * 24 * 28mm / 6.18 * 0.94 * 1.10in Item weight: 40g / 1.41ounce Package size: 160 * 39 * 27mm / 6.30 * 1.54 * 1.06in Package weight: 55g / 1.94ounce Packing List: 1 * Electric Test Pen 1 * Guideline