Capacitor Discharge Pen AC/DC Dual LED Adjustable Pins | Safety Tool

Portable Capacitor Discharge Pen with Dual LED Indicators

Stay safe while working on electronics with this compact, easy-to-use Capacitor Discharge Pen. Designed for technicians, hobbyists, and repair professionals, this tool safely discharges residual voltage stored in capacitors before you handle circuit boards — protecting you from unexpected electrical discharge during repair and maintenance work.

Key Features

• Compact One-Handed Operation: Ergonomic pen-style body (approx. 133 × 15 mm / 5.24 × 0.59 in) fits comfortably in your hand for precise, single-handed control during any electronic repair task.
• Adjustable Pin Spacing: Flexible, retractable probe tips allow you to quickly adapt to different capacitor pin spacings — ideal for a wide variety of components and PCB layouts.
• Dual LED Status Indicators: Red LED signals high residual voltage; Green LED indicates low voltage. When the green LED turns off, discharge is substantially complete, giving you clear, real-time visual feedback throughout the process.
• Wide Compatibility – AC & DC: Works with both AC and DC circuits, making it a versatile addition to any electronics toolkit for production lines, quality testing, or field repairs.
• Built for Safety & Efficiency: Engineered to quickly dissipate stored charge from capacitors, helping protect operators and sensitive components during maintenance procedures.

Specifications

How to Use

1. Extend the probe tips and adjust the pin spacing to match your capacitor.
2. Touch both probes to the capacitor terminals.
3. Observe the LED indicators — Red = high voltage remaining, Green = low voltage.
4. When the Green LED turns off, discharge is substantially complete. Note: approximately 6V residual voltage may remain.
5. Avoid touching exposed metal or circuit components during the discharge process.
6. Allow adequate heat dissipation; do not discharge continuously for extended periods.

Package Contents

• 1 × Portable Capacitor Discharge Pen

Safety Notes

⚠️ The green LED turning off indicates the discharge is substantially complete; however, approximately 6V of residual voltage may still be present in the capacitor. Do not touch the circuit or any exposed metal while discharging. Avoid prolonged continuous discharge sessions and ensure proper ventilation for heat dissipation. The larger the capacitor's capacity, the longer the discharge time required.

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Frequently Asked Questions

Q: What does it mean when the green LED on the capacitor discharge pen turns off?

A: When the green LED turns off, the capacitor discharge process is substantially complete. However, please be aware that approximately 6V of residual voltage may still remain in the capacitor. Always exercise caution and avoid touching any exposed metal or circuit components even after the green LED has turned off.

Q: Is this capacitor discharge pen compatible with both AC and DC circuits?

A: Yes! This portable capacitor discharge pen is designed to work with both AC (alternating current) and DC (direct current) circuits, making it a highly versatile tool for a wide range of electronic repair, testing, and production applications.

Q: Can I adjust the probe spacing on this discharge pen?

A: Absolutely. The pen features a flexible, retractable probe design that allows you to easily extend and adjust the pin spacing to match different capacitor sizes and PCB layouts, ensuring compatibility with a wide variety of electronic components.

Q: Who is this capacitor discharge pen suitable for?

A: This tool is ideal for electronics technicians, hobbyists, engineers, and repair professionals who regularly work with capacitors on circuit boards, power supplies, or other electronic devices. It is especially useful during repair, maintenance, and quality-testing workflows where safely discharging stored voltage is essential before handling components.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.