The LOMVUM AC Voltage Electric Compact Pen Tester is a pocket-sized, high-visibility voltage detector engineered for quick, reliable AC voltage presence checks. Its slender, pen-like form fits comfortably in a pocket or toolkit, delivering clear signals through a buzzer and LED indicators while offering a practical flashlight for dim workspaces. With thoughtful power management, this tester stays ready for your next job without wasting battery life.

Key features

  • Pen-style design for one-handed testing and easy carry
  • AC voltage detection with audible buzzer and flashing LED; alarm frequency scales with voltage level
  • High sensitivity up to 1000V, suitable for wide-range voltage checking
  • Built-in flashlight assists in dark environments and turns off automatically after 5 minutes to conserve energy
  • Auto power-off after 3 minutes of no AC voltage detection to extend battery life
  • Low battery indicator: when power is low, indicator lights flash 3 times, the buzzer beeps once, and the tester powers off

How to use

  1. Press the power button to start the tester.
  2. Voltage alert: if AC voltage is detected, the buzzer will beep and the LED will flash. The higher the AC voltage, the higher the frequency of beeps and flashes.
  3. Flashlight: use the built-in light in dim conditions; it automatically turns off after 5 minutes to save energy.
  4. Auto power off: the tester will automatically power off after 3 minutes of no AC voltage detection.
  5. Low battery indicator: when the battery is low, the power indicator lights will flash 3 times, the buzzer will beep once, and the tester will power off.

Why this tester stands out

  • Compact, pocket-friendly design that makes voltage checks fast and non-disruptive during service calls
  • Clear, immediate feedback through both sound and light—no guessing required about voltage presence
  • Smart features that protect your battery and ensure you’re alerted to low power before a test

Specifications overview

  • Voltage detection: AC voltage presence with audible and visual indicators
  • Voltage sensitivity: up to 1000V
  • Power features: auto power-off after 3 minutes of inactivity
  • Illumination: built-in flashlight with 5-minute auto-off
  • Power status: low battery indicator with corresponding indicators and auto power-down

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Total price$136.02

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