Automotive Circuit Tester 6-24V with 13ft Lead – Power Probe Kit

Stop paying a mechanic $100 just to find a blown fuse.

Grab a second one for $19.99 — one for the truck, one for the garage (or Dad).

Tail light out? 12V outlet dead? Trailer plug not working? Clip it to the battery, touch the probe tip to a fuse or wire, and the indicator tells you right away: red for positive, green for negative. Find the fault in your own driveway in seconds.

The problem and the fix

A basic test light from the store has a short cord and only tells you "maybe." Tracing one bad wire from the battery to the back of a pickup means moving clamps over and over, or giving up and paying for shop time. This power probe has a 13 ft lead, so you clip on once and reach the whole vehicle, with clear red/green polarity lights at the tip.

Why DIYers like it

• Red/green polarity at a glance: see positive vs. negative instantly, with no meter to read.
• 13 ft (4 m) lead wire: reach from the battery to the tail lights, trailer hitch or cab without moving the clamps.
• Power switch on the body: an on-board rocker switch lets you send power or ground to a component to check that it works (see the "What you can test" list below).
• Continuity & ground testing: check fuses, bulbs, relays, switches and grounds.
• Auxiliary ground lead + alligator clips: hands-free setup on the battery and a handy extra ground lead.

What you can test

• Blown fuses and relays
• Broken wires, shorts and open circuits
• Bad grounds and polarity
• Bulbs, switches, diodes and connectors
• Activating components (fans, motors, lights) to see whether they work
• Trailer wiring, RV and boat 12V/24V systems

A gift Dad will actually use

For the dad, husband or grandpa who fixes his own truck: a practical stocking stuffer that lives in the glovebox and saves a trip to the shop.

Specs

• Working voltage: 6-24V DC
• Lead wire: about 13 ft (4 m)
• Indicator: red (positive) / green (negative)
• Body switch: power / ground
• Color: red
• For: cars, SUVs, pickups, trucks, RVs, boats, trailers

What's in the box

1 × circuit probe tester with a 13 ft lead wire, red & black battery alligator clips and an auxiliary ground lead

FAQ

Will it work on my vehicle?
Yes, on any 6-24V DC system: most cars, SUVs, pickups, semi trucks, RVs, boats and trailers.

Can I use it on house outlets?
No. It is for low-voltage DC vehicle systems only. Never use it on 110/220V household AC power.

How long does shipping take?
Standard US shipping is $4.99 (7–15 business days), and free on orders of $45 or more.

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.