Multifunction Dual LED AC-DC Light Tester Pen

AC DC Voltage Tester, Pen Type Electric Voltage Power Detector Alert Sensor, Tester with LED Light, Contact-Less Electricity Tester

It is easy to detect the fire/zero line and know which line has a bad situation. Features: With a self-checking function to know whether the pen battery works or not. LED indicates light, long service time, and convenience to view the detection result. The nib is designed with a screwdriver, which is convenient for you to open the socket box at any time. Pen clip design, mini size, and lightweight for easy carrying. A perfect tool kit for home and electric industry uses.

1. Self-Test: Self-test is required before use, hold the batch head in one hand and touch it in the other hand. The green light indicates that the battery is sufficient for use. If the indicator is off then the batteries need to be replaced (Battery model: LR41)

2. Live wire detection: when the batch head contacts the power supply and the red light lights up at the same time, it indicates live wire.

3. Zero line detection: When the batch head contacts the power supply, the green light indicates the zero line.

Features

• Dual LED Indicators – Red light for live wire detection, green light for zero line detection.

• Self-Test Function – Ensures the pen is working before use; green LED confirms battery is good.

• Contactless Voltage Detection – Safely detects AC/DC voltage without touching bare wires.

• Screwdriver Tip Design – Multi-purpose; can be used as a tester and screwdriver for socket panels.

• Battery Powered – Uses LR41 button cells (replaceable).

• LED Light & Long Service Life – Energy-efficient LED for clear detection results.

• Compact & Portable – Mini size, lightweight, with a pocket clip for easy carrying.

• Safe & Reliable – Ideal for quick checks in household and professional environments.

• Multi-Voltage Detection – Suitable for a wide voltage range (typically 100V–500V AC, varies by model).

Applications

• Live/Neutral Line Identification – Quickly determine live and neutral wires in electrical systems.

• Socket & Switchboard Testing – Check household power outlets, switches, and distribution boxes.

• Electrical Repair & Maintenance – Used by electricians for quick circuit fault checks.

• DIY Household Use – Helps homeowners safely troubleshoot simple wiring issues.

• Industrial/Professional Use – Handy for field engineers, technicians, and installers.

• Power Supply Check – Ensures voltage presence before working on appliances or circuits.

Note: Design, Packaging and internal PCB may differ in each lot.