WPS500X Pressure Transducer

With the unparalleled resolution and accuracy of the WPS500X Automotive Pressure Transducer you can perform quick and accurate pressure analysis of many automotive systems.

  • Accurately measure up to 500 psi (34 bar)
  • Ultra-fast 100 µs response time
  • Zoom function for enhanced analysis capabilities
  • Internal rechargeable LiPo battery
  • Integrated pressure relief / bleed-off valve
  • Auto zeroing
  • High noise immunity
  • Temperature compensated

The WPS500X features an extremely fast 100 µs response time from 0% to 90% of full scale and sensitivity down to about 0.07 psi (5 millibar). This provides you with an accurate representation of rapidly changing signals that span a broad pressure range.


Pressure ranges

Three pressure ranges = performance and versatility

The three pressure ranges of the WPS500X allow accurate measurement and analysis of many automotive pressures including cylinder compression, fuel pressure, intake manifold vacuum and even pulses from the exhaust.

Range 1

The first range gives you high resolution and accuracy for high-pressure tests such as cranking and running cylinder compression or fuel pressure testing. Not only is this test a great way for you to find compression issues, but it is also an excellent way for you to identify cam timing issues such as jumped timing belts and stretched timing chains — this is especially useful on multi-cam engines that may not have a cam sensor on each camshaft.

Range 2

The second range measures from –15 to 50 psi (approximately –1 to 3.45 bar). This range is ideal for vacuum tests and fuel system tests. When testing these systems you will find the zoom function is especially useful as it makes it easy to analyze the valves operating with the vacuum waveform, or the injectors through the fuel waveform.

Range 3

With the third range you can measure –5 to 5 psi (approximately –0.34 to 0.34 bar). This setting is sensitive enough to allow you to analyze small pressures or pulses such as pulses from the exhaust.

Range Pressure range Accuracy Response time Output scaling
1 –15 to 500 psi
–1 to 34.47 bar
1% of scale 100 µs 10 mV/1 psi
(500 psi = 5 V)
2 –15 to 50 psi
–1 to 3.45 bar
1% of scale 100 µs 100 mV/1 psi
(50 psi = 5 V)
3 –5 to 5 psi
–0.34 to 0.34 bar
5% of scale filtered 1 V/1 psi
(5 psi = 5 V)

Zoom function

Built-in zoom function for enhanced analysis

The zoom function operates by removing all of the voltage from the signal below 100 Hz and then multiplying the remaining signal up to 100 times. For example: Let’s say your transducer is connected to the intake manifold vacuum on a running engine at idle with the transducer set to mode 2 (–15 to 50 psi) and the waveform on your PicoScope is at –9 psi. The fluctuation in the signal caused by the valves opening and closing versus atmospheric pressure forcing air into the manifold will be visible, but will only make up a small portion of the overall signal. Selecting the zoom function will bring the waveform up to the zero line and the fluctuations will be magnified making analysis of this component of the signal much clearer.

Nothing compares to the WPS500X

It is not unusual to require a different pressure transducer for each diagnostic test you want to run. The WPS500X eliminates this need by giving you one ultra-high resolution transducer that can be used for a multitude of automotive diagnostic applications. With three pressure ranges, a zoom function, pressure relief valve and a rechargeable Li–Po battery all enclosed in a durable housing the WPS500X is the cost-effective answer to pressure analysis.

When price, performance and versatility matter, there is nothing that compares to the WPS500X Automotive Pressure Transducer.

Typical Uses

The pressure transducer has become the essential diagnostic tool to assist with a multitude of pressure related tasks from -15 psi up to 500 psi, so replacing the majority of analogue gauges used today. With the ability to measure pressure against time we can now witness rapid events taking place that were never previously visible. Below are just a selection of how the pressure transducer takes diagnostic to a whole new level. (Adaptors will be required)

  • In cylinder pressure tests
  • 4 stroke cycle visibility
  • Exhaust gas pulsations
  • Intake manifold pressure fluctuations
  • Crankcase pressure measurements
  • Diesel injector back leakage tests
  • Fuel pressure tests up to 500 psi

Title Language Issue Size Updated All products All languages All documents Status
WPS500X Pressure Transducer User’s Guide English 7 356 KB Jun 19 2014 Pressure sensors English open
WPS500X Pressure Transducer Case Study Leaflet English 3 4 MB Jan 04 2016 Pressure sensors English open

Accessories for the WPS500X Pressure Transducer

Product Price Quantity
Vacuum hose
Universal vacuum adaptor
Large hose adaptor
Bleed hose
Exhaust adaptor
Standard Compression hose
Adaptor M10 short reach
Adaptor M10 deep reach
Adaptor M12 deep reach
Adaptor M14 short reach
Adaptor M14 deep reach
Adaptor M16 Ford triton
Adaptor M18
Gasoline fuel pressure hose with large Schrader valve
Gasoline fuel pressure hose with small Schrader valve
Foster 2 Series quick coupler female to 1/8 inch NPT male
Foam tray for WPS500X and accessories

Customer reviews

10 reviews | Add review

Bernhard List
WPS500X Pressure Transducer

Great, great, great product!
This must be the best kept secret in car problem diagnostic. I have an old Jaguar MK2 (actually I maintain 4 Jags) and had some problem with light but only occasional misfire. I blamed the ignition and bought a Picoscope. Great but nothing pointing to misfires. Of course OBD II had not been invented so my last resort was a pressure transducer. I stacked my pennies and started learning everything I could find about pressure transducer on the internet. Also bugging poor Steve from Tech Support and off I went into the future of modern diagnostic.
1) cranking exhaust measurement ..... nothing wrong.
2) idle exhaust measurement ..... whoops, misfire. Is it a valve seating problem?
3) cranking in-Cylinder test .... nothing wrong.
4) idle in-Cylinder test ...... now here it was right in front of my eyes. Valve timing was way off.
Some previous owner must have set the camshaft precisely and in his infinite wisdom tightened the timing chain thereafter. Intake was 8 degrees off and exhaus cam 16, which led to a massive overlap between the valves of over 45 degrees and sent unburned fuel into the exhaust where it eventually burned.
Without the WPS500X I could not have solved that problem. I admit there is a steep learning curve to such tools but it pays hundrefold when mastered.
Since that day I have proven to my wife that her Renault Espace has no Piston Ring problem and the gas smell in the oil was only from short distance driving during winter ops. Now most of my friends don’t visit anymore because thy fear I would find anything wrong with their car.
So anyone worth his money MUST have that gadget, there is no way around. I am stashing the pennies again to buy a second one for combined measurement in exhaust and cylinder or intake and cylinder. (One is normally sufficient but I am too excited about it so I must have two grin
Five Stars from this guy and the same five stars for Pico Support.
Bernhard List

WPS500X Pressure Transducer Kit

Easy to use, you don’t have to worry about oil or fuel damaging the transducer.
This tool has great resolution, you can do things like diagnose a clogged injector by looking at the fuel pressure pulse, find a clogged exhaust by measuring in cylinder pressure etc.
The transducer and the other products in the case are good quality.

WPS500X Pressure Transducer Kit

An excellent, versatile product. Recommend you purchase the accessories (fuel hose taps, hose adaptors, M18 adaptor…) as these, with a little ingenuity, allow you to connect to a diverse range of models and makes. Start collecting an assortment of hose offcuts (1/4, 5/16, 3/8…), petrol line connectors, oil pressure pipe fittings etc and you will be able to hook into all sorts of things. To me, the diagnostic advantage comes into looking at the data over a time period with panning as opposed to a gauge which doesn’t give you these options. I use the M18 adaptor for blocked exhaust testing as it has the same thread as O2 sensors.

Robert burgy
WPS500X Pressure Transducer Kit

This pressure transducer is vintage pico!!
I have tried other transducers with my scope. They do work, but not nearly with the ease and quality of the pico.

Michael John Eilbracht
WPS500X Pressure Transducer Kit

This Transducer Rocks!  I am a Transit Bus Technician and I use this Transducer to look at Engine Breathing issues on Cummins Engines.  The clarity is super sharp!  It’s like picking a needle out of a haystack!  I made a special adapter so I can hook up the Wps 500 directly to the Central part of the air Intake Horn to look at the Intake Valve Events and then I tap into the exhaust outlet after the Turbo for Exhaust.  It has helped me confirm Valve Train Integrity.  I have also used it to confirm Boost Pressure on Turbo Chargers whether it’s a standard Turbo or a VGT.  I match it with the Scan Tool to see if the Scan Tool is telling me the Truth.  I have also used it to verify Dpf Controllers that have internal pressure sensors.  Just hook up the Wps inline, drive it and look at the max pressure.  This tool has also been a time saver in finding and isolating fuel supply issues on Cummins Engines.  After I hook up the scope I can confirm or deny if the Fuel system has a supply issue on the low side of the system.  It cuts the troubleshooting tree time in half.  I have used this method now quite a few times and every time the test has been right on the money.  I am even starting to experiment with this on Thermo King Ac Systems to look at low and high side pressure at the Compressor to see if I can see the reed valves opening and closing and to see if I can catch one that sticks!  Plus the main thing that it is used for is In Cylinder Pressure Diagnostics.  I used it once to diagnose a problem on a Chevy Uplander with the help of Mick Jones from Autonerdz, a fellow member.  It works great.  The applications can be endless if you put your mind to it.  Anybody who does diagnostics with scopes should have one of these in their toolbox.  Your missing out!  Plus I would also like to thank Pico for having Autonerdz as a distributor.  Hands down they are the Pico Scope Authority on training you how to use one.  I wouldn’t be where I am at today without the help and support of Autonerdz.  Go Autonerdz!

jerry smith
WPS500X Pressure Transducer Kit

I use this accessory a lot to check cylinder and fuel pressure.
I used to use the fluke model, but it does not compare to this
tool. A very good buy.

Mark Stammers
WPS500X Pressure Transducer

I was so impressed with this transducer, I now have 2 in my kit. After initially experimenting with the settings, I now mainly use the standard range selections and not the ‘zoom’ function. The ‘zoom’ function has it’s uses, but because the Pico software is so good and the resolution of the signal is so good, there is usually enough zoom function available, whilst maintaining the entire pressure spectrum. I have used this facility for looking at the detail of intake and exhaust valve function, as well as the many other uses, like injector back leakage and so on.
I really wouldn’t be without one now.

WPS500X Pressure Transducer Kit

I purchased the wps500 along with my Picoscope kit. The things this does and allows me to see are amazing. Before I had to test and infer the failure, now I can see it. The other guys at the shop always ask for my help. Feels got to get them the tough answers in a few minutes.

Robert Burgy
WPS500X Pressure Transducer

This is a great product. I do not own one myself yet but
am able to use it at the tech school in which i teach. Able to easily read vacuum or
pressures to all ranges encountered in our business.

Ahti Hinnov
WPS500X Pressure Transducer Kit

Excellent product that is reliable and easy to use. Added adapters make most measurements quick and reliable.

Since got my WPS500X I have been able to see things that were mystery before and diagnose diagnose cars easier and quicker.

No more limitations any more with high standard product as usual with Pico.

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