--- product_id: 352113068 title: "TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder" brand: "topdiag" price: "¥7742" currency: JPY in_stock: false reviews_count: 5 url: https://www.desertcart.jp/products/352113068-topdiag-p200-automotive-circuit-tester-2022-newest-9v-30v-power store_origin: JP region: Japan --- # 9V-30V wide voltage range Multifunctional: voltage, resistance, relay & injector test 0-2 sec ultra-fast diagnosis TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder **Brand:** topdiag **Price:** ¥7742 **Availability:** ❌ Out of Stock ## Summary > 🔧 Diagnose Like a Boss, Drive with Confidence! ## Quick Answers - **What is this?** TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder by topdiag - **How much does it cost?** ¥7742 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/352113068-topdiag-p200-automotive-circuit-tester-2022-newest-9v-30v-power) ## 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 - • **All-in-One Testing:** From voltage to relay and injector tests, this tool covers every electrical angle. - • **Built for the Pros:** CE & RoHS certified with German engineering style—trusted by technicians worldwide. - • **Speedy Diagnostics:** Get accurate circuit readings in under 2 seconds—no more waiting around. - • **Power Through Any Ride:** Compatible with 9V to 30V automotive systems for universal use. - • **Precision Meets Versatility:** Includes multimeter, oscilloscope, and power supply modes for pro-level diagnostics. ## Overview The P200 Automotive Circuit Tester is a cutting-edge diagnostic tool designed for 9V to 30V vehicles. It delivers ultra-fast, precise readings across multiple functions including voltage, resistance, relay, and injector testing. Lightweight yet robust, it’s CE and RoHS certified, making it a must-have for professional technicians and serious car enthusiasts aiming for flawless electrical system maintenance. ## Description P200 Automotive Circuit Tester ## Features - [Car Comprehensive Tester] Compatible with 9V~30V cars. Fast diagnosis response time 0~2 seconds. Functions include: intelligent detection of voltage, resistance (VDC/AMP/VCC), multimeter function, oscilloscope, relay test, auto parts activation, power supply, injector tester, Positive and negative. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0912YBNQP | | Best Sellers Rank | 545,147 in DIY & Tools (See Top 100 in DIY & Tools) 641 in Circuit Testers | | Brand | TopDiag | | Colour | Red-P200 | | Customer Reviews | 4.4 4.4 out of 5 stars (530) 4.4 out of 5 stars | | Included Components | 1* power probe | | Item Dimensions | 38.5 x 29.2 x 10.7 centimetres | | Item Weight | 1200 Grams | | Manufacturer | TopDiag | | Manufacturer Part Number | P200 | | Maximum Operating Voltage | 30 Volts | | Measurement Type | Multimeter | | Minimum Operating Voltage | 9 Volts | | Model Number | P200 | | Number Of Items | 1 | | Number Of Packs | 1 | | Power Source | Battery Powered | | Specification Met | CE, RoHS | | Style Name | German | | Unit Count | 1.0 count | | Upc | 791734860403 | | Upper Temperature Rating | 60 Degrees Celsius | ## Product Details - **Brand:** TopDiag - **Colour:** Red-P200 - **Item weight:** 1200 Grams - **Power source:** Battery Powered - **Style:** German ## Images ![TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder - Image 1](https://m.media-amazon.com/images/I/717IkrTyGOL.jpg) ![TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder - Image 2](https://m.media-amazon.com/images/I/718fqqrxBlL.jpg) ![TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder - Image 3](https://m.media-amazon.com/images/I/71fgSHefqTL.jpg) ![TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder - Image 4](https://m.media-amazon.com/images/I/71sHkGo-5IL.jpg) ![TopDiag P200 Automotive Circuit Tester, (2022 Newest) 9v-30V Power Circuit Probe Kit with 0~5V Power Supply Fuel Injector Relay Mode, Car Electrical System Test Tool AC/DC Digital Voltage Short Finder - Image 5](https://m.media-amazon.com/images/I/71b9b+VDEfL.jpg) ## Available Options This product comes in different **Color** 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 ### ⭐⭐⭐ Bueko *by on Reviewed in Mexico 23 June 2026* No lo he probado pero está bien completo ### ⭐⭐⭐⭐⭐ Great work prob. *by on Reviewed in Canada 8 November 2024* I amA motorcycle mechanic. Bought this in hopes it would cover all my s of an expensive power prob. This power prob works out of this world. It an extremely easy to use and operate. Its functionality is extremely reliable and clean signal reading. I recommend this for any type of mechanical work you are doing. ### ⭐⭐⭐⭐⭐ A must have for mechanics *by on Reviewed in the United States 16 November 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. ## 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.jp/products/352113068-topdiag-p200-automotive-circuit-tester-2022-newest-9v-30v-power](https://www.desertcart.jp/products/352113068-topdiag-p200-automotive-circuit-tester-2022-newest-9v-30v-power) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-09*