Automotive PicoScope Hardware

4225 Oscilloscope 4225 2-Channel PicoScope
4225 2-Channel Oscilloscope
Price (ex VAT):
 R 13,605.31
4425 Automotive Oscilloscope 4425 4-Channel PicoScope
4425 4-Channel Oscilloscope
Price (ex VAT):
 R 21,829.59
PicoScope 4923 8-ch scope only
Price (ex VAT):
 R 40,768.93
Kits that contain a PicoScope
4225 2-Channel PicoScope Kits
4225 Starter Kit 4225 Standard Kit
4425 4-Channel PicoScope Kits
4425 Starter Kit 4425 Standard Kit
4425 Diesel Kit 4425 Engine and Hydraulics Kit
4425 Advanced Kit 4425 Master Kit
NVH Essentials Kits
4823 8-Channel PicoScope Kit
4823 Professional Kit
PicoScope Automotive Oscilloscopes: Future-proof
PicoScope Hardware History

Pico have been designing, manufacturing and improving our oscilloscopes for over 20 years. Our objective is simple: to make the best automotive oscilloscope in the world.

The recently introduced 4225, a 2-channel PicoScope and the 4425, a 4-channel PicoScope are our 5th generation of automotive oscilloscopes. They are 5x faster and have 8x more memory than the previous generation, ensuring they are powerful enough for the next generation of vehicles with new technologies such as CAN FD.

A brand new 8-Channel Automotive Picoscope, the 4823 has just been introduced for demanding applications that require more than four channels.

Other PicoScope hardware innovations include:

  • New floating inputs for non-grounded measurements and voltage drop tests (2 and 4-channel instruments only)
  • Higher voltage ranges (up to 200 V without attenuators) (2 and 4-channel instruments only)
  • ConnectDetect® to ensure you have a good connection
  • Advanced triggers to capture intermittent faults
  • Hardware filters and frequency measurement
  • USB 3.0 connected and powered.

When you purchase any diagnostic tool you not only spend money but you also spend time learning how best to use it. We protect that investment in two ways. First we develop hardware and software that is easy to use for those starting out with oscilloscopes yet has the power and features demanded by experienced users. Second, we do not compromise on quality or specifications, so expect the PicoScope hardware you buy today to still be an essential part of your diagnostic toolbox 10 years from now.

Floating Inputs
PicoScope Hardware: Floating Inputs

Floating input channels are a unique new technology that allows safe, low-noise measurements even in situations where none of the inputs are grounded. Floating inputs allow a single input to perform voltage drop tests (for example, along the battery to starter motor cable) and measurements on non-grounded signals like hybrid electric motor drives. With floating inputs the maximum allowable voltage difference between any two channel grounds is 30 V. The inputs can now measure up to 200 V (up from 100 V on the previous generation of PicoScope). A key benefit is that external attenuators are no longer needed for measuring injector voltages.

Remember: on a floating-input scope, grounding one input does not ground all the others. You must provide signal and return connections for each input that you are using.

Oscilloscope Connect Detect Feature
PicoScope ConnectDetect®

Making sure that you have a good connection to the signal you want to test is not always easy. With ConnectDetect® enabled, indicators on screen, and lights on the scope itself, turn from red to green as soon as a good connection is detected.

Once a good connection is established, the on-screen icons fade so as not to obscure the waveform. If, however, the status changes (for example vibration causes a probe to become loose), the icons will highlight the change.

Deep Memory Oscilloscope

The best way to diagnose an intermittent fault is often to set up the scope to measure from several components and wait for the fault to occur. For an intermittent misfire, you might want to capture several minutes of cam, crank, ignition and injector waveforms. These types of tests require an oscilloscope with a "deep" memory buffer, so that you can capture for long periods of time and then zoom in without any gaps or loss of detail.

With PicoScope you can collect 250 MILLION samples, more than any other automotive oscilloscope. Our advanced "always on" memory technology uses hardware acceleration to make sure that the processing of large amounts of data does not slow the oscilloscope down even when you are using a slower or older PC.

Deep Memory Buffering

Deep memory allows long recordings at high speed – you capture a complete test drive whilst looking for intermittent faults. When not using the full memory for a single waveform, PicoScope automatically stores up to the last 10,000 waveforms in the buffer, so you can stop the scope and “wind back time” to see every capture.

Crisp, clear high-resolution Display
Resolution - 8 vs 12 bits

A deep waveform memory gives you a high time resolution, but a high vertical resolution is equally important. It allows you to see small changes in signal such as ignition coil oscillations and the small dip in current when an injector opens.

Many oscilloscopes only offer 8-bit resolution which allows 256 vertical steps. As most PC monitors have vertical resolutions of over 1000 pixels, this results in a low-resolution "blocky" display. The PicoScope 4225, 4425 and 4823 have 12-bit resolution (4096 steps), and when not using the full sampling rate of the scope this can be enhanced to 16 bits (65 536 steps). See our article on oscilloscope specifications.

The image shows the same ignition signal captured at both 8 bits and 12 bits. With the 8-bit oscilloscope the coil oscillations are distorted while at 12 bits they are in clear high definition.

Fast Sampling

The latest PicoScopes can capture signals faster than ever. With sampling rates of up to 400 million samples per second, there is nothing that can escape the scrutiny of PicoScope.


CAN and FlexRay are now common on vehicles, and new protocols such as SENT for digital sensors and CAN FD (up to 5x faster than the current CAN standard) will appear in new vehicles from 2017. The fast sampling rate ensures that the PicoScope Hardware in the 4225, 4425 and 4823 oscilloscopes have the speed to handle future needs as vehicle technology changes.

USB 3.0 for Power, Speed and Simplicity

As with our previous generations of PicoScope oscilloscopes, no external power supply is required and there are no batteries to go flat, just a simple reliable connection to the USB port.

The PicoScope 4225, 4425 and 4823 have the latest SuperSpeed USB 3.0 port to interface to your PC. Don't worry if your PC only has USB 2.0 ports – the PicoScopes are fully compatible with these too. If you have USB 3.0 on your PC you will notice slightly faster screen update rates, faster file saving and USB streaming. As more of our customers move to PCs with USB 3.0, free software updates will ensure that you get the full benefits available from the new standard.

Our unique fast USB streaming allows continuous gap-free data to be collected straight to PC memory. This makes features like our cylinder balance, battery test and (optional) NVH tests possible. It also allows the oscilloscope to display live, real-time data without waiting for the screen to refresh.

Advanced Features

Most new users start by using the guided tests to configure all the settings automatically. As your experience grows there are many advanced features to explore. These include:

  • Advanced digital triggers. Unique among automotive oscilloscopes, these trigger modes allow you to trigger when there is too long a time gap (such as when an injector fails to fire). They can also be set to trigger and sound an alarm when a sensor signal goes out of range.
  • Filters. Some signals are noisy as wires in the loom pick up noise from other wires. The ECU filters this noise out. The PicoScope 4225 and 4425 have selectable hardware filters to remove this noise, so you see what the ECU sees.
  • Hardware frequency measurement. Flow sensors and some airflow sensors output a digital frequency signal. Most oscilloscopes can't extract usable diagnostic information from this, but your PicoScope can convert it to a conventional analog waveform (as shown in this MAF sensor example).

Every aspect of your PicoScope hardware has been designed for a long working life, and it has the performance to ensure it will not be obsoleted by the changing technology in new vehicles. The hardware is robust and reliable with no moving parts or batteries to fail. Combine this with free support and free software updates for the life of the product and its easy to see why a PicoScope is the choice for professional diagnostics.