Pen Voltage Detector ( HTC – AC-II )

Description

The HTC AC‑II Non‑Contact Voltage Detector is a slim, pen‑style safety instrument engineered for electricians, technicians, and everyday users needing fast, reliable detection of live AC voltage in wiring and electrical outlets. With a detection range spanning 90 V to 1,000 V AC, it offers broad compatibility across household, commercial, and light industrial systems, enabling quick identification of energized conductors without contact, and reducing electrical shock risk.

This compact tester features a flashing LED indicator that visually alerts to live voltage, accompanied by an audible buzzer sound when voltage is detected—offering immediate, unmistakable feedback. A built-in bright white LED flashlight improves visibility in dim spaces like junction boxes or panel interiors. Designed for rapid use, the unit includes an auto power‑off function that conserves energy by shutting down after approximately five minutes of inactivity.

Rated to CAT IV 1000 V, the AC‑II offers laboratory‑standard safety in non‑contact operation around high‑voltage circuits. The device’s inlet tip is fully insulated, while its casing meets IP40 protection, ensuring dependable performance in routine environments.

With dimensions of 145 × 25 × 21 mm and weighing just ~42 g, this lightweight detector is highly portable, slips easily into a pocket or tool pouch, and is comfortable for one‑handed operation. It runs on two AAA batteries that provide extended life, complemented by a low battery indication to avoid unexpected outages.

Operation is intuitive: simply bring the tip near a live wire or outlet. Presence of AC voltage triggers the LED flash and buzzer—no buttons or configuration needed. The built‑in LED flashlight illuminates test points, while auto‑off conserves battery life.

The AC‑II excels in multiple safety-focused applications. It is ideal for verifying non-energization before working on wiring or fixtures, locating live feeders in conduit runs, outlet polarity checks, identifying live wires in wall cavities, and quick field checks in residential or commercial panels.

Key Features & Specifications

• Voltage detection range: 90–1,000 V AC, non-contact detection

• Visual alert: Flashing LED indicator when live voltage is present

• Audible feedback: Beep sound to confirm voltage detection

• Built‑in flashlight: Bright LED for low-light testing scenarios

• Power management: Automatic shut-off after ~5 minutes of inactivity

• Battery: 2 × AAA Batteries (1.5 V); lightweight (~42 g); auto off and low-battery alert

• Safety rating: CAT IV 1000 V, IP40 protection against dust and mishandling

• Physical dimensions: 145 × 25 × 21 mm; pocket-sized and ergonomic

• No calibration or configuration required—safe to use straight out of the box

Advantages for Professionals

The HTC AC‑II enables safe, fast, and accurate detection of live AC circuits—perfect for electricians, technicians, or DIY users:

• Prevents electrical accidents by verifying power‑off conditions before touching wires

• Supports daily field work—from checking outlets to identifying energized lines

• Clear LED and buzzer feedback reduce false positives and improve user confidence

• Compact, pen‑style design easily fits into pockets or belt kits

• Long battery life and auto shut‑off optimize uptime and reduce maintenance

In summary, the HTC AC‑II Non‑Contact Voltage Detector is a compact, practical tool that blends reliability, safety, and ease-of-use into one pen‑style device. Its wide detection range, clear visual/audible indicators, LED torch, and robust safety certification (CAT IV 1000 V) make it invaluable for professional and everyday electrical diagnostics. Whether verifying non-energized circuits before maintenance or quickly checking wiring in limited-access spaces, the AC‑II ensures fast, dependable results with minimal setup and maximum safety.