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V200 Pro Automotive Circuit Tester, 12-24V Power Circuit Probe Tester

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Arrives Tuesday, Oct 27
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Features

  • ALL-IN-ONE TOOL FOR ANY CIRCUIT PROBLEM DIAGNOSISV200 Pro accurate automotive circuit tester covers all circuit tests: Circuit Breaker/Open Test Tracing Wire AC/DC Voltage Test Diode Test Resistance Test Polarity Test Continuity Test Ground Test Activate Components Signal Circuit Test Relay, Fuse, Trailer Light Test. You can quickly & easily Locate short circuits, open connections, broken wires, current leaks and even trace wires. Get this essential circuit tester today and save your time and costly trip to a dealership!
  • TOOL 1: COMPREHENSIVE POWER CIRCUIT TESTERSwitch to Mode I, youve just activated the easy-to-use Power Circuit Probe Tester which supports 4 working modes:AC/DC Voltage, Resistance and Diode. The electrical probe tester with clear color display allows users to check 12V 24V electrical system instantly, tells you whether the wire or circuit is live, and which side of the circuit you are on, positive or negative. NOTE: This circuit tester can be powered by either connecting to cigarette lighter/vehicles battery,no external battery needed!
  • TOOL 2: LOCATING BREAKER POINT EFFICIENTLYSwitch the V200 Pro All-In-One Circuit Tester Kit to Mode II, you will be able to use the breaker finder which can easily locate the circuit breaker point, open connections, broken wires, current leaks with tone change, even trace wire/cable without damaging the insulation. This circuit breaker finder tool works on all kinds of vehicle circuit issues such as those found in car, SUV, mini van, truck, tractor, boat & RV, with voltages between 6 and 42 volt DC.
  • COMPONENT ACTIVATION & SENSOR/SIGNAL CIRCUIT TESTVDIAGTOOL V200 Pro power circuit probe kit can generate activation signals to electrical components like car lights, motors, windshield wipers, radiator fans, relay, fuel injector and etc to troubleshoot electrical problems; locate auto short circuits if you keep getting blown fuses and also test various sensors, signal circuits to pinpoint the root cause to electrical issues accurately when you have extracted DTCs from vehicle ECUs.
  • OVERLOAD PROTECTION TO PROTECT CAR ELECTRONICS This automotive electrical tool comes with short circuit protection. Whenever it gets overloaded, it just gonna shut down and restart, which is a safe measure to protect the device and car electronics. Useful Tip: You can also use overload protection feature to test short circuit conveniently. NOTE: If you received defective unit or it malfunctions, please reach us via vdiagtool2 @ outl ook c om for hassle-fr*ee replacement any time!
  • 20FT EXTENSION CORD TO WORK ANYWHERE AROUND THE VEHICLE V200 Pro power circuit probe tester comes with 20 feet long cord plus 20 feet extension cord. Combining the feature that it can be powered by the cigarette lighter, and alligator clip for convenient ground connection, you can test electrical circuit system anywhere around the vehicle. No more worrying about short cord while testing electrical system! NOTE: Mode II-circuit breaker tester is powered by 1pcs 9V Battery!
  • APPROVAL BY P.P. 10-YEAR OFFICIAL TECHNICAL ENGINEER , 3-YEAR WA*RRANTYCountless auto electrical specialists recommend accurate and comprehensive VDIAGTOOL power circuit tester, and even including P.P. official technical engineers. It accomplishes everything that P.P.3/P.P.4 does for half the price! We offer 3-year wa*rranty, Lifet*ime technical assistance, 60 Days No-Question-asked NEW REPLACEMENT OR RE*FUND. Any questions or concerns, please reach us via vdiagtool2 @ outl ook c om.
  • ONE-STEP SOLUTION for AUTO ELECTRICAL SYSTEM TEST with 2 TOOLVDIAGTOOL V200 Pro meets the needs of 2 products at one time. Simply and quickly switch from the power circuit probe tester functional mode to the circuit breaker finder tool mode with one click, while the similar only fulfill the first tool function actually. There is no need to get an extra tool to judge continuity of the cables/wire and diagnose the breaker point. This convenient and efficient circuit instrument is a great choice for DIYERS,electrician and technician.

Description

Make Car Repair Easy & Inexpensive Founded in 2018, VDIAGTOOL is driven by a passion for simplifying car diagnostics. Inspired by real-life frustrations, our founder assembled a team of over 200 engineers and mechanics with 20+ years of experience. Together, we’ve developed innovative tools trusted by professionals and DIYers in 50+ countries, ensuring smooth and safe journeys for all. Your car, our expertise—keeping you confidently on the road. Looking Ahead: Enterprise Spirit: The V200 Pro is here to simplify the process of fixing the issues in 6-30V electrical systems: Diagnose & Pinpoint electrical problems, Active Component, Continuity Test, Locate shorts, Opens, & Bad connections accurately, Quick Self-Test & Polarity Identification, Overload Protection, etc. Others Stop at a Basic Circuit tester. V200 PRO Goes Beyond—it's a Full-featured Probe Tester and a Dedicated Short/Open Finder. Don't waste time guessing where a short or open is. Switch to Trace Mode and pinpoint the fault instantly, while still having 20+ circuit tests at your fingertips! Smart Auto Circuit Breaker: Overload Protection That Also Serves as a Tester With built-in short-circuit defense, the internal breaker trips under excessive load. This design not only protects the tool from overload but also provides added utility as an effective circuit testing device. Why Choose VDIAGTOOL V200 Pro? AC/DC/Resistance/Diode,Polarity Test ✔Continuity, Ground Test ✔Signal Circuit Test and more. DC : 0-60V; R: 0-100 kΩ; Rated current: 1-10 amps; Frequency response of sound passage: 0-10Khz ✔ Automobiles、SUV、RVs、Bus、Trucks、Tractors、Steamer、Boats、Motorbike About Vdiagtool Designed by professional mechanics with over 20 years of experience in the automotive repair industry. Every device is crafted with practicality in mind, eliminating unnecessary costs or features that don't contribute directly to performance. What do I do if my VDIAGTOOL V200 Pro Power Cirtur Probe Tester & Breaker Finder Kit is broken? We offer 3 Year War ranty and Lifetime Af ter-s ale service. If the unit you had is defective or malfunctions, please reach us via vdiagtool2 @ outl ook c om directly, we can send you a new one to replace it without 24hrs. How do I connect my devices for testing? In Mode I, you’ve just activated Circuit Probe Tester which can be powered by either connecting to cigarette lighter/car’s battery,no external battery needed! Please be reminded that the screen of the Mode I won’t light while switching to Mode II. Does it come with a battery in the Mode II-breaker finder tool? Yes. Mode II-breaker Tester is powered by 1pcs 9V Battery. Please check whether the battery is normal before use. When this part is unused, suggested to remove the battery directly to avoid draining the battery power. Why is the volume low or even not working when it is mode II? 1. When the signal is not strong enough, the volume will be low, please find a strong signal and try to turn the signal up to the highest level; 2. Maybe the battery power supply is insufficient, please replace the battery and try again.

Brand: VDIAGTOOL


Power Source: Powered By Vehicle Battery Or Cigarette Lighter.


Style: ‎2-in-1 Automotive Electrical Tool Kit with 20ft+20ft Extension Cable; All-in-one Power Circuit Probe Tester & Short Breaker Finder Tool; Accurate Automotive Circuit Tester recommend by hot youtubers; Popular Addtion to The Toolbox; Beginner, DIYers, Electrician, Technician, Maintenance Worker; Built-in Flashlight; Fuse Saver Tech; Non-invasive Wire Tracking See more


Color: Blue


Item Weight: 1.48 kg


Power Source: Powered By Vehicle Battery Or Cigarette Lighter.


Minimum Operating Voltage: 12 volts_of_direct_current


Maximum Operating Voltage: 42 volts


Compatible Devices: Vehicles (Cars, Trucks, SUVs, Boats, RVs)


Style Name: ‎2-in-1 Automotive Electrical Tool Kit with 20ft+20ft Extension Cable; All-in-one Power Circuit Probe Tester & Short Breaker Finder Tool; Accurate Automotive Circuit Tester recommend by hot youtubers; Popular Addtion to The Toolbox; Beginner, DIYers, Electrician, Technician, Maintenance Worker; Built-in Flashlight; Fuse Saver Tech; Non-invasive Wire Tracking


Color: Blue


Item Weight: 1.48 kg


Item Dimensions: 1.88 x 0.98 x 7 inches


Specification Met: CE, RoHS, UL


Brand Name: VDIAGTOOL


Model: V200 Pro


Unit Count: 1 Count


Number of Items: 1


Item Highlight: Electrical Short & Open Circuit Breaker Finder, Wire Tracer, AC/DC Voltage Resistance Current, Trailer Light Test, 40FT Cord


Manufacturer: VDIAGTOOL


Number of Packs: 1


Included Components: Probe Tester kit; Cigarette lighter Adapter; Extension Cable(20ft.);9V Battery


Part Number: ‎V200-Pro


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

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Top Amazon Reviews


  • Pleasantly suprised on how well it works
Good things DO come in small packages. I purchased the Vdiagtool V200 kit to see how it compares to my expensive Powerprobe kit that I have in my toolbox at work. It basically does the exact same things for a fraction of the cost. First it comes in a small plastic case to house the leads as well as the probe and the signal sniffer. It’s a little tight for someone who just wants to throw it all in there, but you SHOULD be nice to your tools and wrap them up correctly and put them away correctly and they should last a LONG time. Using the probe was very easy. Attach the leads with the alligator clips to the probe lead, red to positive of the battery and black to a good ground (or you have the option of a 12v cig lighter plug). There are 2 – 3way rocker switches. One on the lead and one on the probe. The one on the lead is your main selector switch. Forward is for the probe and reverse is for the signal generator. The probe also has a round button in the center to select even more modes. AC Voltage, OHMS, and Diode/Continuity. I was pleasantly surprised to accidently come across this because I ALWAYS use a continuity test and most newer meters these days have them but they don’t have an alarm to notify you like this does. Otherwise it offers 12 tests you can preform: Diode Test (Reverse only), Polarity Test/Check, Continuity (my favorite), resistance (ohms), short check, ground test (good or partial ground), AC & DC Voltage, Voltage Injector, Signal Injector, Open circuit tester and Signal tracer. You have 2 VERY bright led lights in front that light up when you are using the main probe to “inject” a 12v power or ground to trouble shoot. These are done using the probes 3 way switch. Forward sends 12v (battery voltage to be fair, it isn’t regulated voltage) and depressing the switch down sends a ground signal. Also when you do this the display changes color to let you also know what mode you are in. RED for power and GREEN for ground. You would use this option say to test a window or door lock switch (be sure it’s a 12v switch and not a DATA run switch though first) or to test the window motor or lock actuator. Or in my case I ran aux backup lights on my truck and forgot which one of the dozen wires I ran is for that, Went wire by wire injecting voltage until the light lit up. Saved me from tracing the wire. With this kit I COULD HAVE traced it easily (minus crawling under a rusty truck) The signal is generated within the main probe using a 1.2Khz square wave for a digital signal. This is introduced by rocking the 3 way on the lead towards you, then you use the small alligator clips to hook up to the wire you want the signal to run through. Once you do that, you turn on the signal “sniffer” probe (battery was INCLUDED!) and verify you have signal by listening to the tone and then just follow the wire either by itself of in the loom. If the signal goes away before the device it is powering then you have an open (break in the wire) or a short in the wire and this will show you (via tone) exactly where that is IF that is what you are looking for. Overall I am happy with this. The larger kit offered obviously comes with more adapters and bells and whistles but for the average DIY Joe this is perfect. Does it replace a DMM? Well yes and no. it all depends on what you need it for. But for troubleshooting this is a MUST. It is roughly 20 feet over all in length which is good for MOST cars and trucks on the road today. I am sure they offer extensions which would be really handy to work on trailers because those wires always go BAD! ... show more
Reviewed in the United States on September 16, 2025 by Jeff Olson

  • Quality tester, accurate, with many features!!
When I was made aware of this tester, I wanted it yesterday. I ordered it on March 1st and it came on March 6th, which is really fast. Usually it takes 2 weeks to reach Hawaii. I have around 26 testers and just a handful is shown in one of these pictures. I still have my first tester which I made with a metal rod, light bulb, wire, and an alligator clip. These testers have sure come a long way since 1975 when I lst began working on cars. I have a Auto mechanics college degree and owned 170 cars since driving. Now days cars have a lot of electrical circuits and this tester is vital to have and own along with a good scanner, and a smoke detector for the EVAP system. I got this Vdiag Pro 200 tester and just by coincedence my neighbor's cars had starting and electrical issues. One I found a bad ground, one was a dying battery, one had a faulty starter, and my own truck had an exposed hot wire has you can see in one of the pictures. I was actually looking to see the tool in tight spaces like between the radiator support and grill when I saw this exposed wire. I tested it with this tool and it was hot. Using the tester I pushed the button and it lit up my auxillary fog lights. The tester fit well with my hand holding it inbetween the grill and radiator support.. The accuracy is really good as I have tripled checked it with other name brand testers you will recognize in the photos. I have a boat, riding mower, motorcycles, and 5 cars that I have tried this tester on. The quality of the tools is very good. The connectors are tight and the probing needle fits snugly. The fit is really good so while taking the wire from the front of the car to the back of the boat trailer, you can count on the connector holding and not coming apart like a extension cord usually does and you have to make a over under knott. Everything this company claims this tester can do is true. I even showed this to my mechanic friends and they were impressed. All of us use the P Probe and my P Probe III is in one of the photos. I have the P Probe from I to III and have no regrets. Now that I have this Vdiag Pro 200, it will be my go to tool. Before I had to carry a wire tracer seperately and was either the telephone one you see in the picture or my landscaping one for tracing sprinkler wires to trace my truck, car, and boat wiring. Now I have the best of both worlds in one easy to carry and store plastic case. I really have nothing bad to say. The screen is easy to see in bright sunlight, enough wire to reach from the front of the tow vehicle to the rear of the boat trailer. Built with quality materials, easy to use. The most important thing is it is highly accurate as you can see in one of the photos the other two tester I compared it with. Do not hesitate to buy this tester! Your life will be more enjoyable when working on electrical circuits especially if you work on cars, boats, motorcycles, your kids powerwheels, and even your home. Just make sure you turn off the power to your home when tracing your outlet to your fuse box. Not made to test live 120v or 240v AC home circuits. Only DC voltage from 12 to 24 volts DC. You will not be disappointed, I have been using this tester for a week now and it is accurate which is the most important feature for me and it is half the cost of other testers with more features. This tester is made for 12v DC to 24v DC so you can even test some of your power tool batteries that is within range. ... show more
Reviewed in the United States on March 14, 2024 by BOJO

  • An excellent tool for diagnosing electical issues at a great price!
This probe will allow you to easily test automobile, RV, boat, and trailer wiring. It is packed with features that allow the probe to test voltage, resistance, and perform signal tracing. You will be able to energize electical parts like lamps and relays with the probe. The tool comes packed in a nice padded case that holds the probe, probe tip, breaker test probe, cigarette lighter adapter, a 20 foot extension cable, and battery terminal clamps. I first learned to operate the tool by performing some simple tests. Connecting the probe to the vehicle's power source is easy. You can connect right at the battery using the included clamps or with the lighter plug. By placing the the probe into Mode I, it can measure the battery voltage by pressing the rocker switch forward where the digital display will then display the positive voltage. Pressing the red button will scroll through the tool's feature set - DC voltage, AC voltage/frequency, resistance, and diode testing. I measured the resistance of my old VW's ignition coil with the probe (you can see the measurement in one of my photos). This is a useful feature for measuring resitance of relay coils, carb thermostats, and idle solenoids. When you push the rocker switch forward, the probe tip is connected to positive battery voltage. You can use this feature to power and test bulbs, relays, and solenoids before you install them into the vehicle (or check them while they are in place). The probe tip can pierce wiring insulation to allow testing without disconnecting wires. I especially appreciated the inclusion of a 20 foot power extension cable that will allow you to move the probe to far reaches of the vehicle. There is no need to make power connections at another part of the vehicle. There is a signal tracing feature when the tool is placed into Mode II. This will allow a signal from the probe to be placed onto a wire and you can then use the breaker probe to move along the suspected wire. A tone is heard from the tester as you move along the wire and will cease when you reach the breakpoint. I used this feature to finally locate the reason the rear lift gate on my Ford Escape would not raise with the foot activation. I found a break in the sensor wire right as it entered a multi-wire connector. I was able to solder a wire around the connector to get the liftgate to work once again. The probe paid for itself on just that one job. A dealership repair would have cost hundreds of dollars. The instruction manual is a bit hard to understand, but there are several excellent Youtube videos that review this tool and show how it can be used. If you compare this tool to the PowerProbe 3 or 4, you will see it works very similar but at a much reduced price. I really like this tool and look forward to finding other uses for it. ... show more
Reviewed in the United States on February 19, 2024 by BeeCee

  • Def helps to find broken wires.
Works well once you figure out how to use it. The instructions were not super well written but points you in the right direction. Its a little difficult to pin point where your issue is in a large bundle but it Def gets you close and narrows down the area to search a lot. Very worth the money. Wish the instructions were a little clearer. But would recommend buying if you have a frustrating wire to track down. ... show more
Reviewed in the United States on May 20, 2026 by Darrern Miller

  • Incredibly Multifunctional Electronic System Diagnostic Tool
As a DIY mechanic, this tool was an amazing upgrade to the digital volt meter (DVM) I have used over the years to diagnose electrical problems. While VDIAGTOOL V200 Pro incorporates many functions of a DVM, the first thing is you never have to worry about dead or corroded batteries as it uses the power source from the vehicle it is diagnosing. In moving from a DVM to the V200 Pro, it requires some additional instruction and precautions to eliminate damage to circuits you're testing. For instance, unlike a DVM, the V200 Pro has the capability to power a circuit in order to check relays, bulbs, fuses, etc and you need to understand wiring schematics and characteristics before applying voltage to modern car circuitry. There is a nice concise manual included with the V200 Pro that gets things started and there are multiple online videos that can teach you more on the real-world operation of the tool. There are competitors in the marketplace and while many of their features are similar, the VDIAGTOOL V200 Pro is an unbeatable value for its price. Some of the other things it is capable of doing is testing relays, fuses, resistors, ohms, continuity, and something that is very helpful is the "circuit breaker finder" that is included in the kit. To note; the circuit probe runs off the vehicle's battery/power, the circuit breaker finder is shipped with and requires one, long-lasting 9V battery. While I have not had any broken circuits to repair since I purchased the V200 Pro, I tested the circuit breaker finder and found it to be quite helpful finding a circuit within a wiring loom. My test was on the headlight of my 2014 Jeep Grand Cherokee and I used the circuit breaker finder to track the wiring from the fuse box all the way to the headlight. This was beneficial as the main wiring loom breaks down into several smaller looms around and behind parts and structural pieces. The circuit breaker finder made it easy to trace all the way to the headlight. There is a volume control on the circuit breaker finder to help squelch "noise" from competing sources. The VDIAGTOOL V200 Pro comes with an approximately 16' long cable that easily reaches most vehicle's battery, and if you're servicing a big RV or trailer of any kind, it comes with an extension that is about 16' feet in length that should take of 99% of diagnostic situations you'll find yourself with. In addition to alligator type clips for the battery, there is a cigarette lighter plug that can be used for power as well which add to your accessibility. Overall, the VDIAGTOOL V200 Pro is a very capable electrical diagnostic tool and is rated for systems ranging from 12V to 24V. Each time I use the tool, I continue to learn more about it and with it's capable of. Having the VDIAGTOOL V200 Pro in your toolbox will set you up with the equipment and technology to handle most vehicle electrical challenges you might face. ... show more
Reviewed in the United States on April 12, 2024 by Scooter & Mick

  • A Must Have For The DIYer
VDIAGTOOL V200 Pro Automotive Power Circuit Probe Tester I recently purchased the VDIAGTOOL V200 Pro Automotive Power Circuit Probe Tester, and it exceeded my expectations. This tester is a must-have, if you're like me, and cringe when you walk into the mechanic's shop. This tool is specifically designed for automotive electrical diagnostics and proved to be a valuable addition to my toolkit. The test modes are selected by pressing the red button on the circuit tester. (Voltage testing DC, AC, Resistance and Diode) The toggle switch, on the power cord, selects between the multi tester and the wire tracing breaker tester. The center position turns off the Multi tester unit. One of the standout features of the VDIAGTOOL V200 Pro is its ability to accurately detect open and short circuits in 12V and 24V electrical systems. You can inject positive, or negative battery voltage, into circuits. This capability proved to be extremely useful when troubleshooting complex wiring issues in vehicles. The tool's wire tracing functionality also helped me identify and locate specific wires with ease. The AC and DC voltage testing capabilities of this tool are also worth mentioning. You can check the ripple of your alternator. It also displays the max and min voltages, along with the frequency of the ripple. It accurately measures voltage levels, allowing for quick and reliable diagnosis of electrical problems. Additionally, the VDIAGTOOL V200 Pro can be used to test trailer relays and fuses, making it a versatile tool for automotive technicians. It can also test resistance in the circuit and even test diodes. The build quality of the VDIAGTOOL V200 Pro is solid. It feels sturdy and durable, ensuring that it can withstand the demands of regular use in a workshop environment. It also has a (Built-In) auto reset circuit breaker for overload protection. The ergonomic design and intuitive interface make it easy to operate, even for those new to automotive diagnostics. One aspect that could be improved is the user manual. While it provides basic instructions, a more comprehensive guide would be beneficial, especially for users who are not familiar with automotive electrical diagnostics. Pros: 1) Comes with a sturdy storage case which protects components from damage. 2) Built-In auto reset circuit breaker, for overload protection 3) Has lights built in to illuminate your work area 4) Has a long extension cord 5) Has dual power options (Cigarette lighter or Batt. Terminals) 6) Multi function testing and wire tracing 7) Great customer service Cons: 1)Instruction manual, not very informative To sum things up, I really enjoyed using this diagnostic tool. The VDIAGTOOL V200 Pro Automotive Power Circuit Probe Tester is a reliable and efficient tool for diagnosing electrical issues in vehicles. Its open and short circuit detection, wire tracing, and voltage testing capabilities make it a valuable asset for automotive technicians, or DIYers. Despite the minor drawback of the user manual, I highly recommend this tool for anyone in need of a reliable and versatile automotive power circuit probe tester. ... show more
Reviewed in the United States on February 23, 2024 by RJC

  • How did I do without this tool for so long? This is a game changer!
I am a serious DIY automotive enthusiast. I am also an electronics engineer. I purchased the Vdiagtool V200 Pro to assist me with a vexing electrical problem. I bought the V200 Pro after watching a YouTube video and anxiously awaited receiving it. I was impressed with the obvious build quality. The wires are well insulated and flexible. It feels great in the hand. I have a 2010 Ford F150 with a 5.4L V8. I had it parked in my back yard and rodents got into the engine compartment and chewed up some of the wiring. It also had a problem with the AC clutch compressor being inoperable. The engine ran poorly with multiple misses and engine light came on and could not be reset. I used a code scanner to determine three of the injectors were not working. The wiring goes from the injector into a harness that disappears into a loom. I placed the V200 into AC mode and started the car. I then went to the injector connector and touched the terminals of the injector…. nothing. I then used a small terminal to connect the red wire of the probe to the injector and set it to signal trace mode. I grounded the black wire. I then ran the signal tracer over the wiring harness while listening to the “warble.” It took less than 60 seconds to trace the harness to the point where the signal stopped. It was buried inside a complicated and loaded harness. Closer inspection showed there were visual indications of the wire chewed in two pieces on the bottom of the harness by those pesky rats. I would have had great difficulty finding it with another method. I was able to repair the harness by cutting the loom and soldering the wires back together. I then found two other wires the same way. The engine was now running great! No misfires and the injectors all working! I then began to play with the V200 in its normal voltage measuring function. The engine was running and I noticed that the voltage of the battery was 12.2 VDC instead of the expected 14.4 volts. Those pesky rats were at it again. With the help of the V200 I quickly located the wire to the field terminal of the alternator. It was chewed at the connector. A quick repair and all is well. Having such a good day I decided to look at the nonfunctional AC compressor. I pulled the AC relay under the hood. Using the V200, I probed the coil terminal and determined it was not being actuated when the AC was turned on. I then moved to the relay output and used the V200 to simulate the relay operation by injecting battery voltage into the output terminal. The compressor clutch immediately engaged. The problem was evident. The compressor was prevented from operating because it was so low on refrigerant that the low-pressure sensor prevented it from turning on. In this vehicle, you cannot add refrigerant without the compressor running. I used the V200 to activate the compressor, and I added R134. In a couple of minutes, I was ready to go and was able to replace the relay, which then operated on its own. The bottom line is that I very much like the V200 Pro. It is a great tool. Well made and very versatile. It made a tedious task easy and saved me much time and effort. It is a well-made tool and has earned a top spot in my toolbox. It will easily perform almost any electrical diagnostics on an automobile. It will not replace my Fluke multimeter for critical measurements, but that is not its purpose. This makes troubleshooting wiring for almost any automotive circuit. Taillights to wipers, blowers to power windows, relays to seat controls. This is now my go-to favorite! I have oscilloscopes and meters of all types, but nothing works better for me when working on automotive wiring. I plan to buy another for my son for Christmas. ... show more
Reviewed in the United States on March 10, 2024 by Wayne S.

  • Very useful tool to have for vehicle electrical diagnostics and priced decently.
Works about as well as my Powerprobe, but the buzzer function on this guy is strange as it doesn't give you the long beep when you are on battery voltage, it kinda just lets out a quick garbled chirp. This is a great tool for the home mechanic though and it is priced very reasonably you just need to pay attention to the screen and not the sound which can be aggravating in some situations or mine just came defective. ... show more
Reviewed in the United States on April 18, 2026 by Edward

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