PNX Professional Electrical Continuity Tester Pen

Prototyping and Engineering Tips from Robogears

• The "Dead Circuit" Rule: Never use this tester on a circuit that has power running through it (like a live wall outlet or a connected car battery). This tool has its own internal battery to provide the test current; adding external power will likely burn out the internal LED or buzzer.

• Self-Test First: Before every use, touch the alligator clip to the probe tip. If the light and buzzer don't activate, your internal batteries are dead or the lead wire is broken. Always "test the tester" first!

• Finding a "Short": If you have a blown fuse that keeps popping, use this tester to check for a "Short to Ground." With the power off, clip one end to the chassis and the other to the wire; if it buzzes, that wire is touching metal somewhere it shouldn't.

• Resistance Sensitivity: Note that some continuity testers will buzz even through high-resistance components (like a small motor). For precision electronic work where you need to distinguish between a "dead short" and a "low resistance path," a digital multimeter is a better companion.

Package Includes

• 1 x PNX Continuity Tester with Attached Lead and Clip

• Internal Battery (Pre-installed)

Disclaimer

This tool is intended for low-voltage, unpowered circuit testing only. Do not use on AC mains (110V/220V) as it poses a severe risk of electric shock and tool damage.