Electronic Continuity Tester Pen Type (AX-204)

Description

The Electronic Continuity Tester (AX-204) is a straightforward, must-have diagnostic tool for any electrician, electronics hobbyist, or repair technician. Designed in a convenient pen-style form factor, this device allows you to quickly determine if an electrical path is complete, making it incredibly easy to troubleshoot broken wires, blown fuses, or faulty PCB traces.

Available at Tomson Electronics, the AX-204 features a durable, lightweight plastic body with a sharp metal testing probe and an extended 1-meter flexible lead terminating in a sturdy test lead. When a continuous circuit is detected, the built-in bright indicator lamp instantly illuminates, providing clear visual feedback. Operating on two standard AA batteries (not included), it safely and accurately checks for continuity on completely de-energized circuits.

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Specifications

• Model: AX-204
• Test Type: Electrical Continuity (De-energized circuits only)
• Indication: Visual (Neon / LED Lamp)
• Form Factor: Pen Type
• Probe Type: Sharp metal tip
• Lead Length: 1 Meter (with insulated alligator clip)
• Power Source: 2 × AA Batteries (Not included)
• Body Material: Heavy-duty ABS Plastic

Applications

• Wire Tracing: Quickly identifying internal breaks in long cables or finding the matching ends of a wire bundle.
• PCB Repair: Verifying continuous copper traces and checking for accidental solder bridges (shorts) on printed circuit boards.
• Component Testing: Confirming the integrity of basic unpowered components like fuses, toggle switches, and relay contacts.
• Automotive Diagnostics: Troubleshooting vehicle wiring harnesses and checking grounding points (always ensure battery power is disconnected before testing).

Frequently Asked Questions (FAQ)

Q: Can I use this to test a live 220V AC wall outlet?
A: No! This is a continuity tester, not a mains line tester. It is strictly designed for use on de-energized (unpowered) circuits. Connecting it to live mains voltage is extremely dangerous and will destroy the internal circuitry of the tool.

Q: How do I properly use the tester with the 1-meter lead?
A: First, ensure the circuit is completely powered off. Attach the alligator clip at the end of the flexible wire to one end of the circuit, switch, or wire you want to test. Then, touch the metal probe tip of the pen to the opposite end. If the electrical path is unbroken, the indicator lamp will light up.

Q: How do I install the batteries?
A: The AX-204 operates on two standard AA batteries. To install them, simply unscrew the top cap of the pen body, insert the batteries following the correct polarity markings, and screw the cap back on securely.

Package Includes

• 1 × Electronic Continuity Tester Pen Type (AX-204) with attached 1m lead