Description
The PicoScope assessors kit (PQ222) is configured for vehicle assessors and inspection engineers who need reliable oscilloscope diagnostics for condition assessment, pre-sale valuation, and roadworthiness evaluation. Built around the 4-channel 4425A with PicoBNC+ intelligent probe interface, this kit provides the test leads and accessories to quickly verify the mechanical and electrical condition of any vehicle.
What’s Included
- PicoScope 4425A 4-channel oscilloscope with PicoBNC+ interface
- PicoBNC+ test leads with 4 mm and back-pinning probe tips
- AC/DC current clamp for circuit measurement
- PicoBNC+ breakout leads and adaptors
- Carry case
Vehicle Assessment Diagnostics
The PicoScope assessors kit gives you the measurement capability to go beyond visual inspection and fault code scanning. Quickly assess the true condition of a vehicle using non-invasive oscilloscope tests:
- Relative compression testing – assess engine mechanical health via starter motor current draw without removing spark plugs or injectors. Identify weak cylinders, worn valves, and timing issues in seconds
- Starter motor and battery condition – measure cranking current and voltage to evaluate battery state and starter motor health
- Charging system analysis – verify alternator output, ripple, and voltage regulation under load
- Sensor signal verification – capture waveforms from crankshaft, camshaft, and other primary sensors to confirm correct operation
- Injector and ignition patterns – check injector current profiles and ignition coil waveforms for signs of wear or degradation
- CAN bus health – decode CAN and CAN FD network traffic to identify communication faults or module issues
Fast, Evidence-Based Assessment
For vehicle assessors, the key advantage of oscilloscope diagnostics is objective, recorded evidence. PicoScope waveforms can be saved, annotated, and included in assessment reports. The Pico waveform library provides thousands of known-good reference waveforms for direct comparison, making it straightforward to identify components that are worn, degraded, or failing — even when they haven’t yet triggered a fault code.
Relative compression testing alone can reveal engine condition issues that would otherwise require a physical compression test or teardown. For pre-sale valuations and fleet condition reporting, this is a significant time saver.
Key Specifications
The PicoScope 4425A delivers 4 channels of 20 MHz bandwidth with 12-bit resolution. The PicoBNC+ interface ensures automatic probe recognition and correct scaling for every measurement, so setup is fast and repeatable across different vehicles. USB 3.0 SuperSpeed connectivity and 256 MS deep memory capture every detail.
PicoScope 7 Automotive software includes over 150 guided tests to walk you through common diagnostic procedures, plus serial data decoding for CAN, CAN FD, LIN, and FlexRay networks.
FREE Training Included
Every PicoScope assessors kit from Tech Topics includes a FREE 2-day oscilloscope training course (worth £595+VAT). Learn to use your scope effectively with hands-on training at TTHQ delivered by experienced diagnostic technicians.
Frequently Asked Questions
What types of vehicle assessment can I perform?
The PicoScope assessors kit supports non-invasive relative compression testing, battery and charging system analysis, sensor signal verification, injector and ignition pattern capture, and CAN bus health checks. These tests let you objectively assess engine condition, electrical system health, and network integrity for pre-sale valuation and roadworthiness reporting.
Can I save and export test results for reports?
Yes. PicoScope 7 Automotive software lets you save waveform captures, add annotations, and export data for inclusion in assessment reports. The Pico waveform library provides known-good reference waveforms for comparison, making it straightforward to evidence your findings.
Do I need additional accessories?
The assessors kit covers core assessment tasks. For pressure-based diagnostics (fuel pressure, compression), add the WPS500X pressure transducer. For high-current measurement on starter and charging circuits, consider upgrading to the 2000A current clamp.
Is training included?
Yes. Every PicoScope kit from Tech Topics includes a FREE 2-day oscilloscope training course at TTHQ.
