Logic Tester Pen 5V/3.3V by Comidox Logic Analyzer Handheld Probe

Description

Product Overview

The Comidox Logic Tester Pen is engineered for rapid, accurate detection of digital logic levels in a compact, handheld form factor. Measuring just 0.1 x 0.1 x 0.1 inches and weighing only 1.6 ounces, this pen‑style device packs powerful functionality into a pocket‑sized package. It supports both 5V and 3.3V logic families, providing three distinct LED indicators—red for high (above 2.4V), green for low (below 0.6V), and blue for intermediate or disconnected states. The elastic probe tip ensures reliable contact on a variety of component leads, test points, and breadboard rows, while the built‑in DuPont‑style wiring makes it easy to integrate with development boards, power supplies, and learning kits. Manufactured by Comidox, a trusted name in industrial and scientific tools, the pen has earned a 4.6‑star rating from verified customers, reflecting its durability and ease of use.

Usage

Designed for engineers, technicians, educators, and hobbyists, the Logic Tester Pen excels in a wide range of environments. In a university electronics lab, students can quickly verify signal levels on microcontroller breakout boards without reaching for a bench‑top multimeter. In a professional R&D setting, engineers can troubleshoot prototype circuits, confirming that power rails and logic signals meet design specifications. Field service technicians benefit from the pen’s portability when diagnosing handheld devices, IoT modules, or automotive control units on site. The tool also integrates seamlessly into maker workshops, where rapid prototyping and iterative testing demand a fast, reliable level detector. Whether you are debugging a hobbyist Arduino project, validating a commercial PCB, or teaching digital logic fundamentals, the pen provides instant visual feedback that accelerates problem resolution.

Why Choose Us

Comidox stands behind every Logic Tester Pen with a commitment to quality, precision, and customer satisfaction. The device is constructed from high‑grade, flame‑resistant polymer that resists impact and chemical exposure, ensuring a long service life even in demanding workshop conditions. Each pen undergoes rigorous functional testing to verify LED accuracy, probe elasticity, and voltage tolerance before shipment. Our after‑sales support includes a dedicated technical helpline, comprehensive user manuals, and a responsive warranty process that covers manufacturing defects for one year. By choosing Comidox, you gain access to a global network of experts who can assist with integration tips, firmware compatibility, and troubleshooting advice, helping you get the most out of your testing workflow.

Key Features

• Compact, lightweight design fits comfortably in a pocket or tool belt for on‑the‑go diagnostics.
• Dual‑voltage detection (5V and 3.3V) covers the most common digital logic families used today.
• Three‑color LED indicator provides immediate visual feedback of high, low, or intermediate states.
• Elastic probe tip ensures reliable contact on tiny leads, test points, and breadboard rows.
• Comidox customer support offers technical assistance, warranty coverage, and rapid replacement if needed.

FAQ

How does the Logic Tester Pen differentiate between high and low logic levels?

The pen uses built‑in voltage thresholds: a red LED lights when the measured voltage exceeds 2.4 V (high), a green LED lights for voltages below 0.6 V (low), and a blue LED indicates voltages between 0.6 V and 2.4 V or an open circuit.

Can the pen be used on both DC and AC signals?

The device is calibrated for DC logic levels typical of digital circuits. While it can detect the presence of an AC signal, the LED indication is based on the average voltage and is not intended for precise AC measurement.

Is the elastic probe replaceable if it wears out?

Yes, the probe tip is designed for easy replacement. Spare tips are sold separately and can be swapped without soldering, extending the lifespan of the pen.

What warranty does Comidox provide for this product?

Comidox offers a one‑year limited warranty covering manufacturing defects. Customers can contact our support team for troubleshooting, replacement parts, or a full unit exchange if the product fails under normal use.