Voltage test pen, circuit tester with digital display. High-precision AC power testing equipment for cars, homes, refrigerators, and motors, red.

General Description: The high-precision smart digital voltage tester is a versatile power tool designed for voltage testing and screw manipulation. It combines the functions of a voltage tester and a screwdriver (flat and Phillips bits), offering a practical solution for electrical and maintenance work. Featuring a green-backlit LCD screen, it clearly displays the detected voltage and changes background color accordingly, accompanied by a buzzing audible warning, providing a precise visual and audible indication of the presence of voltage. Its two-in-one design makes it highly useful: it can be used to measure voltage and to tighten/loosen screws with both flat and Phillips bits. Compact and lightweight, it is easy to carry and takes up little space, ideal for field use. Features: Multiple Functions: Combines voltage detection and screwdriver function (flat and Phillips bits). Visual and Audible Indication: LCD screen with changing background color and audible buzzing warning to indicate the presence of voltage. Accurate Voltage Detection: Capable of detecting voltage non-invasively (AC 30-1000V) and by contact (AC 11-450V). Compact and Portable: Lightweight, easy to carry, takes up little space. Automatic: Automatically shuts off after 3 minutes of inactivity to save battery. Null/Live Wire Identification: Capable of identifying the null and live wires. Induction Sensitivity Indication: Allows adjustment of detection sensitivity. NCV Voltage Detection: Socket Responsible for non-contact voltage detection. Specifications: Measurement range (non-invasive): AC 30 - 1000V; Measurement range (contact): AC 11 - 450V; Frequency: 50 - 60Hz; Alert mode: Screen background color change + audible buzzing warning; Function: Null/phase wire identification, induction sensitivity indication, automatic power-off (3 minutes), NCV voltage detection; Battery: 1 * AAA battery (not included). Package contents: 1 * Smart digital voltage detection pen; 1 * User manual. Usage: Battery installation: Insert one AAA battery (not included) into the pen's battery compartment. Powering on: Turn on the pen using the appropriate switch (refer to the user manual). (for specific control). Voltage detection: Non-invasive detection: Bring the tip of the stylus close to the wires or conductors to detect the presence of voltage (within the AC range of 30-1000V). The screen will display the voltage and change color, and a buzzing sound will occur if voltage is detected. Contact detection: Attach the appropriate screwdriver bit (flat or Phillips) and directly touch the live conductor (within the AC range of 11-450V). The screen will display the voltage and change color, and a buzzing sound will occur. Null/Live Wire Identification: Use the voltage detection function to identify the null and live wires in a multicore cable. Sensitivity Adjustment (if necessary): Adjust the stylus's induction sensitivity using the appropriate controls (refer to the user manual). Use as a Screwdriver: Attach the flat or Phillips screwdriver bit and use the stylus to tighten or loosen screws. Power Off: The stylus will automatically power off after 3 minutes of inactivity. It can also be switched off manually using the switch. Instructions: Safety: Always observe electrical safety rules when using the stylus. Never intimately touch live conductors, even with the stylus. Battery: Check the battery level regularly. Replace the AAA battery when it is low to ensure good detection performance. Maintenance: Clean the stylus with a soft, dry cloth after use. Avoid excessive moisture or dust in the electronic components. User Manual: Carefully consult the user manual before first use to understand all features and precautions. Storage: Store the stylus in a dry place at room temperature when not in use.