Collection: Diagnostic & Test Tools (45)

HGV diagnostic and electrical test tools at Truckstop Group

Electrical faults on commercial vehicles are time-consuming to diagnose without the right equipment. A circuit fault that takes two hours with a basic test light can be traced in twenty minutes with a proper circuit tracer. The diagnostic and test tool range at Truckstop covers the equipment that makes this work faster and more reliable: Powerprobe circuit testing tools, Powerhand multimeters and test lead kits, and NOCO lithium jump starters for battery and starting system assessment.

Powerprobe is a professional circuit tester brand widely used in commercial vehicle workshops. The Powerprobe 3 (available in red and carbon fibre finish, with or without accessories kit) provides powered circuit testing, continuity testing and voltage measurement from a single tool. The POWERPROBE Circuit Tracer and Short Finder Kit locates wiring shorts and open circuits in multi-core harnesses without dismantling the loom. The 5V Reference Adaptor extends capability to sensor circuit testing on modern ECU-controlled trucks.

Powerhand test accessories cover the full range of connection types: needle back probes, universal probes, croc clips, amp clamp with voltmeter, cable piercers (red and black), and a 10-piece universal automotive test lead kit. The Powerhand Digital Automotive Multimeter covers voltage, current and resistance measurement. NOCO Boost XL 1500A lithium jump starter provides emergency starting capacity for HGV batteries where the vehicle starter circuit needs supplementary power. The POWERSTART 12V 4Ah three-stage charger handles battery conditioning and maintenance charging.

Frequently asked questions

What is a Powerprobe and how does it help with HGV electrical diagnosis?

A Powerprobe is a powered circuit tester that supplies 12V or 24V directly to a circuit from its internal power supply. This allows you to test actuators, solenoids and lights directly without a running vehicle, and to test for shorts, opens and voltage drops in a circuit while monitoring output on the built-in display. It is significantly faster than a basic test light for systematic fault tracing.

Can the NOCO jump starter start an HGV?

The NOCO Boost XL is rated at 1500A peak, which covers most diesel HGV starting requirements for vehicles with a good but discharged battery. It is not a substitute for a properly maintained battery system, but provides reliable emergency starting capacity for roadside recovery of commercial vehicles.

What test leads are compatible with Powerprobe tools?

The Powerprobe Sensor Test Lead Kit and the Powerhand 10-piece universal automotive test lead kit both include a range of probe and connector types for accessing test points on vehicle harnesses, sensors and connectors. The POWERPROBE 5V Reference Adaptor is used specifically for low-voltage sensor circuit testing on ECU-controlled systems.