Non-Contact Voltage Tester Pen by TriFirmum - Dual Range AC 12V/48V-1000V Electrical Detector

Product Overview

The TriFirmum Non-Contact Voltage Tester is an essential tool for anyone working with electrical circuits. This voltage detector pen allows you to safely identify live wires, null wires, and breakpoints without making direct contact. With a dual-range capability covering AC 12V and 48V to 1000V, it is versatile enough for low-voltage electronics and high-voltage household systems. Its compact, lightweight design (47g) fits easily in a pocket, making it convenient for on-the-go testing. Whether you are a professional electrician or a weekend DIY enthusiast, this tester enhances safety and efficiency.

Key Features and Benefits

• Dual Range Detection: Switch between low range (12V AC) for sensitive electronics and high range (48-1000V AC) for standard household and industrial circuits. This flexibility ensures you can test a wide variety of applications.
• Non-Contact Safety: The probe detects voltage through insulation without touching bare wires. Simply bring the tip near a wire or outlet to receive visual and audible alerts, reducing the risk of electric shock.
• Breakpoint Finder: Easily locate breakpoints in wires or cables by moving the tester along the length. The signal stops at the break, helping you identify faults quickly.
• Clear Alerts: Bright red LED light and a loud beeper indicate the presence of voltage. No need to look at a screen – the alerts are intuitive and immediate.
• Ergonomic Design: The pen-shaped body with a pocket clip is comfortable to hold and easy to carry. The rubberized grip ensures a secure hold even with gloves.
• Auto Power Off: Conserves battery life by automatically shutting off after 5 minutes of inactivity.

How to Use

Using the TriFirmum voltage tester is simple. First, insert a AAA battery (included) and turn the device on by pressing the power button. Select the appropriate range: low range for 12V circuits (e.g., doorbells, thermostats) or high range for 48-1000V (e.g., outlets, switches, breakers). Test the device on a known live source to ensure it works. Then, bring the tip close to the wire or outlet – the red LED will flash and the beeper will sound if voltage is present. For breakpoint detection, move the tester along the wire; the alarm stops at the break. After use, turn off the device to save battery.

Who It Is For

This voltage tester is designed for electricians, maintenance technicians, home inspectors, and DIY homeowners. It is perfect for troubleshooting outlets, switches, light fixtures, and wiring. The dual-range feature makes it suitable for both low-voltage applications (like automotive and electronics) and high-voltage residential or commercial systems. Anyone who prioritizes safety and efficiency in electrical work will benefit from this tool.

Why Choose This Product

TriFirmum’s Non-Contact Voltage Tester stands out for its dual-range versatility, reliable detection, and user-friendly design. Unlike single-range testers, it covers both low and high voltages, reducing the need for multiple tools. The bright alerts and ergonomic grip enhance usability, while the auto power-off extends battery life. Backed by a brand committed to quality, this tester offers excellent value for professionals and hobbyists alike. Trust TriFirmum for accurate, safe electrical testing.

Technical Details

• Range: Low – 12V AC; High – 48-1000V AC
• Frequency: 50/60Hz
• Battery: 1 x AAA (included)
• Weight: 47g
• Color: Non-Screen (no LCD display)
• Certification: Compliant with CE standards