The Ingco HSDT30021 Digital Voltage Tester Pencil is a precision-engineered, multi-functional electrical diagnostic tool designed for rapid, safe, and accurate circuit verification. Merging the utility of a traditional contact tester with modern digital sensor technology, this compact pen-style tester is an essential safety device for electricians, appliance repair technicians, and DIY homeowners checking live wires before executing maintenance work.

The tester operates across a wide voltage spectrum from AC/DC 12V up to 250V, making it highly versatile for both low-voltage electronic circuits and standard main utility lines. It features a crystal-clear, high-contrast digital LCD screen that displays the voltage range instantly upon contact, eliminating the guesswork associated with faint neon bulb indicators. Built with dual-mode operational capability, the tool allows for direct contact testing via its durable, precision-ground slotted alloy screwdriver tip, as well as non-contact induction testing to trace broken circuits or detect live wires safely through insulated plastic jackets. The lightweight, ergonomic housing is constructed from high-impact insulating polymer, complete with a convenient integrated pocket clip layout for easy everyday carry on your shirt or tool belt.

Technical Specifications

• Brand: INGCO

• Model: HSDT30021

• Product Type: Digital AC/DC Voltage Test Pencil & Induction Detector

• Voltage Testing Range: AC / DC 12V to 250V

• Display Interface Type: High-Contrast Digital LCD Screen Layout

• Testing Methods Matrix:

  • Direct Contact Test: Conductive measurement via the physical alloy contact probe

  • Induction Breakpoint Test: Non-contact electromagnetic field sensing through wire insulation

• Probe Tip Profile: Precision-Ground Slotted (Flat-Head) Slotted Screwdriver Tip

• Chassis Material Composition: High-Impact, Electrically Insulated ABS Polymer Shell

• Portability Features: Integrated Mechanical Spring Pocket Clip

• Primary Target Substrates: Standard residential wall sockets, electrical switch terminals, extension cords, automotive fuses, appliance power leads, and insulated copper wiring lines

• Primary Applications: Verifying current presence in household outlets, pinpointing hidden cable breakpoints or wire fractures, identifying live versus neutral lines in junction boxes, testing circuit continuity, and checking low-voltage automotive electrical circuits

• Packaging Type: Packed securely by commercial sliding card layout