--- product_id: 317279071 title: "Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200" brand: "topdiag" price: "$319.54" currency: USD in_stock: true reviews_count: 12 category: "Top Diag" url: https://www.desertcart.us/products/317279071-power-circuit-probe-kit-breaker-finder-for-automotive-circuit-tester store_origin: US region: United States of America --- # 9~30V voltage range Oscilloscope & multimeter combo 30+ automotive diagnostic functions Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 **Brand:** topdiag **Price:** $319.54 **Availability:** ✅ In Stock ## Summary > 🔌 Power up your diagnostics with the ultimate automotive circuit wizard! ## Quick Answers - **What is this?** Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 by topdiag - **How much does it cost?** $319.54 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/317279071-power-circuit-probe-kit-breaker-finder-for-automotive-circuit-tester) ## Best For - topdiag enthusiasts ## Why This Product - Trusted topdiag brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Battery Health Check:** 3-mode 12V battery tester (cranking, charging, load) ensures you never get stranded with a dead battery. - • **Smart Auto-Range & 20ft Reach:** Auto-detects polarity and parameters on a bright HD LCD, plus a long cable for hassle-free diagnostics without dismantling. - • **All-in-One Diagnostic Powerhouse:** 30+ automotive tests from circuit breaker finder to fuel injector cleaning—be the mechanic who never misses a beat. - • **Precision Voltage & Signal Analysis:** Multimeter and oscilloscope modes deliver real-time waveform and frequency insights for pinpoint troubleshooting. - • **Relay & Component Activation On-Demand:** Activate relays, lights, motors, and solenoids instantly to fix issues on the fly and keep your projects rolling. ## Overview The TopDiag P200 Power Circuit Probe Kit is a versatile automotive diagnostic tool featuring 30+ functions including circuit breaker finding, multimeter and oscilloscope modes, relay testing, and fuel injector cleaning. Operating within a 9~30V range, it offers smart auto-ranging, a 20ft cable for extended reach, and a 3-mode 12V battery tester. Designed for professionals and DIYers alike, it supports 18 languages, firmware upgrades, and comes with a 1-year warranty and 24/7 support. ## Description Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 | 9~30V Voltage Range, Oscilloscope Mode, Multimeter, Relay Test, Fuel Injector Tester, Activating Component: desertcart.com: Industrial & Scientific Review: A must have for mechanics - I bought this tool over six months ago and use it almost every day for my work. It has proved to always be accurate and therefore be very reliable. After realizing the power probe hook went off the market I did my research and ended up with this one thinking it would be a low risk investment due to the price comparison of powerprobe or Snapon. It has survived being dropped and handled normal wear in a shop environment. I use every function on it besides the diode tester( due to not having many opportunities in an automotive setting) and especially appreciate the one channel lab scope( something not available in name brand powerprobes). The only drawback is it only operates and reads in DC voltage, something to keep in mind when using the multimeter and oscilloscope setting. Overall amazing tool and passed my expectation on durability. Review: Inclusive kit - This is a useful and handy all inclusive kit, that is great to have on hand. I always like to stay prepared for any situation so this was perfect for me to keep in my car. It is pretty light weight and comes in a hard case for travel and storage. You get all the cables and connectors needed, and they work just as they are supposed to and user friendly. Not only does it come with good instructions, but it also has a CD which i found much more helpful! Good value for all you are getting. ## Features - [30+ Diagnostic Car Services for Automotive System] Multiple functions - almost covering the probe tools on the market. With Circuit Breaker Finder, Multimeter function, Oscilloscope mode, Continuity testing, Relay test, Activating components in your hand, Car Battery Test, Power supply/ground detecting/open & short testing, Trailer lights testing, Signal circuit testing, Checking for Bad Ground Contacts, Clean the Injectors, 20FT cable & LED light, AC/DC voltage/resistance/diode/frequency testing. - [Multimeter & Oscilloscope Tester] The P200 Circuit tester will be the more versatile and powerful Power Circuit Probe Kit you've ever seen. Contains the multimeter's DC voltage (VDC), resistance (OHM), diode/on-off test (DIO), current (AMP) and frequency test functions, combined with the unique oscilloscope function and buzzer, can test components according to voltage, resistance value, frequency duty cycle, and waveform diagrams to quickly diagnose problems with your circuit system. - [Activating Electrical Components & 12V Battery Tester] Being able to ap-ply battery power or ground right to the probe tip gives you the ability to activate and dynamically test electrical components such as lights, motors and solenoids. 12V Battery Tester – Instantly checks battery health with 3 essential modes (Cranking Test, Charging Test & Load Test) to catch cranking failures, alternator issues, and hidden capacity loss, so you never get stranded by a dying battery. - [Smart Test & Positive & Negative Test] When connected to the probe of Car Electrical Test Tool to measure voltage, resistance, positive/negative polarity, it will automatically become an instant auto-range, intelligent judgment does not require manual selection, and the corresponding parameter values and prompts are displayed on the HD LCD screen. With a 20ft cable, you can quickly assist you in diagnosing the car's condition without opening the wiring. - [Clean the fuel injector] It is extremely important to regularly test the fuel injector. P200 provides 4 types of pulse signals (once or multiple times) combined with car cleaner to achieve maximum cleaning effect. - [Relay Test] There’s nothing worse getting stuck on the trail at night because your light relay burnt out, losing your radio in the middle of a road trip, or not being able to finish your project because you’re short one small relay. With our P200 relay test, fix your lights on the fly, and keep the road trip rocking all night long. - [Widely Application] The Topdiag P200 is essential for a range of automotive diagnostic scenarios, whether you're a professional mechanic troubleshooting complex vehicle issues or a DIY enthusiast performing routine maintenance tasks. With its versatile capabilities, it's perfect for diagnosing electrical problems, testing relays, analyzing fuel injectors, activating components, and even utilizing oscilloscope mode for advanced troubleshooting. It's a must-have tool for anyone working on automotive electrical systems - [18 Languages & Firmware Upgrade] You can choose from 18 languages.You can easily use a USB data cable to connect Circuit tester automotive to a computer to perform an online upgrade program. - [1-YEAR WARRANTY, PERFECT SERVICE] TopDiag Car circuit tester provides 1-year warranty, and supports 30 days no reason to return. If you encounter any issues during the product update, please contact us immediately. We offer 24/7 online technical support to assist you. E, MAIL: jihaotech @ outlook . com ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0912YBNQP | | Best Sellers Rank | #13,513 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Circuit Testers | | Brand | TopDiag | | Brand Name | TopDiag | | Color | Multicolored | | Compatible Devices | Vehicles, Vehicle Electrical Systems | | Customer Reviews | 4.5 out of 5 stars 563 Reviews | | Included Components | 1* Circuit Tester 1* Carry Case 1* Power probe 2* Probe cable | | Item Dimensions | 15.16 x 11.5 x 4.21 inches | | Item Highlight | 9~30V Voltage Range, Oscilloscope Mode, Multimeter, Relay Test, Fuel Injector Tester, Activating Component | | Item Weight | 1200 g | | Item dimensions L x W x H | 15.16 x 11.5 x 4.21 inches | | Manufacturer | TopDiag | | Maximum Operating Voltage | 30 volts | | Measurement Type | Multimeter | | Minimum Operating Voltage | 9 volts | | Model | P200 | | Number of Items | 1 | | Part Number | P200 | | Power Source | Ac,dc | | Style | P200 | | Style Name | P200 | | UPC | 791734860403 | | Upper Temperature Rating | 60 °C | ## Product Details - **Brand:** TopDiag - **Color:** Multicolored - **Item Weight:** 1200 g - **Power Source:** Ac,dc - **Style:** P200 ## Images ![Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 - Image 1](https://m.media-amazon.com/images/I/71kbS+3pOfL.jpg) ![Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 - Image 2](https://m.media-amazon.com/images/I/71bFb29rlZL.jpg) ![Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 - Image 3](https://m.media-amazon.com/images/I/71mJjbJjWOL.jpg) ![Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 - Image 4](https://m.media-amazon.com/images/I/71lyzWjSBtL.jpg) ![Power Circuit Probe Kit, Breaker Finder for Automotive Circuit Tester, P200 - Image 5](https://m.media-amazon.com/images/I/81+UoI4NMsL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: does it check house current?** A: This is for DC current tests only which uses batteries such as boats , riding mowers and automobiles. It will do both 12 and 24 volt systems. Does not work with AC voltage or current in homes **Q: Can you check for voltage by just holding the probe against a wire or do you have to pierce the insulation on the wire?** A: You have to pierce the wire. I suggest if you do, dab a bit of silicone sealant to the hole to keep out moisture and avoid corrosion. I would also suggest getting the back probe set to avoid piercing wires if that is a concern. **Q: Does the colour of the tool refer to any differences?** A: The picture is the real color, and the product is taken in kind **Q: Does this come with extension cable?** A: If you are working on trailers or the like you will need to purchase the extension. However the cord it comes with should be long (20FT) enough to work on any part of a car or light truck that you need to access. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A must have for mechanics *by M***T on November 16, 2024* I bought this tool over six months ago and use it almost every day for my work. It has proved to always be accurate and therefore be very reliable. After realizing the power probe hook went off the market I did my research and ended up with this one thinking it would be a low risk investment due to the price comparison of powerprobe or Snapon. It has survived being dropped and handled normal wear in a shop environment. I use every function on it besides the diode tester( due to not having many opportunities in an automotive setting) and especially appreciate the one channel lab scope( something not available in name brand powerprobes). The only drawback is it only operates and reads in DC voltage, something to keep in mind when using the multimeter and oscilloscope setting. Overall amazing tool and passed my expectation on durability. ### ⭐⭐⭐⭐⭐ Inclusive kit *by I***3 on June 29, 2021* This is a useful and handy all inclusive kit, that is great to have on hand. I always like to stay prepared for any situation so this was perfect for me to keep in my car. It is pretty light weight and comes in a hard case for travel and storage. You get all the cables and connectors needed, and they work just as they are supposed to and user friendly. Not only does it come with good instructions, but it also has a CD which i found much more helpful! Good value for all you are getting. ### ⭐⭐⭐⭐⭐ Bueno *by E***E on September 21, 2026* excelente herramienta ## Frequently Bought Together - TopDiag P200 Power Circuit Probe Kit - Automotive Circuit Tester with 2024 Online Update, 9~30V Voltage Range, Multimeter, Relay Test, Fuel Injector Tester, Activating Component, Oscilloscope Mode - WINAMOO Automotive Test Light with 3-48V LED Digital Voltage Display, Auto Circuit Tester with Voltmeter & Dual Color Polarity Indicate, Electric Test Pen w/Stainless Probe for Car/Truck/SUV Checker - JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro + Puller – Replacement for RV Camper Boat Truck (2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/317279071-power-circuit-probe-kit-breaker-finder-for-automotive-circuit-tester](https://www.desertcart.us/products/317279071-power-circuit-probe-kit-breaker-finder-for-automotive-circuit-tester) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-25*