US PRO Automotive Circuit Tester Lance Probe 6 - 24 Volts digital tester 6789

Product code: 6789
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£13.58 (ex. VAT)
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Product information

Professional tool for auto electricians and mechanics.

Suitable for the following tests on systems from 6 volts up to 24 volts quickly and efficiently with LED indicators and audible tone for when the circuit breaker trips.

Reduces diagnostic time in automotive electrical systems.

Simply hook the unit on to the vehicle's battery, then you can conduct a positive or negative battery current to the tip by rocking the power switch forward or backward.

The unit is short circuit protected and can test for bad ground contacts instantly.

Allows you to follow and locate short circuits

Also, test for continuity with the assistance of its auxiliary ground lead.

Supplied with a 5-meter cable to allow the user to test electrical systems quickly and easily.

This unit will make a sound when the circuit breaker trips. Once it trips the unit will reset automatically 3-5 seconds later.


Specific Specifications:

Operating voltage 6-24 Volt DC

Cable length 5 meters (approx 15 feet)

Overload protected - 8A (the unit disconnects when the current exceeds 8amp)

The total length of the tool 200mm (this includes the probe)


Specific Applications & Usage

Tests for continuity.

Tests for the polarity of a voltage.

Checks lamps.

Checks electric motors.

Power supply function may be selected.

Follows and locates short circuits.

Tests for bad ground contacts.

Fitted with a sensitive short-circuit protection device.

Safe to use around vehicles electronic management systems.

Polarity Tests:

Starter solenoids

Cooling fan motors

Fuel pumps

Window/sunroof motors

Relays and lamps

Wiper motors

Continuity Tests:


Diodes and fuses


Wiring harnesses

Free UK delivery 
Dispatched within 1 working day

Technical specifications

MPN 6789
Quantity 1
EAN 5060478386049
Brand US PRO
Product Code 6789
Weight 0.385kg