--- product_id: 144387848 title: "Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe" brand: "jastind" price: "258.17 DT" currency: TND in_stock: true url: https://www.desertcart.tn/products/144387848-jastool-heavy-duty-3-48v-digital-lcd-display-circuit-tester store_origin: TN region: Tunisia --- # 3-48V wide voltage range 140-inch extended spring wire 0.1V accuracy digital LCD Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe **Brand:** jastind **Price:** 258.17 DT **Availability:** ✅ In Stock ## Summary > ⚡ Unlock the power of precision diagnostics — never miss a beat in your circuit game! ## Quick Answers - **What is this?** Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe by jastind - **How much does it cost?** 258.17 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/144387848-jastool-heavy-duty-3-48v-digital-lcd-display-circuit-tester) ## Best For - jastind enthusiasts ## Why This Product - Trusted jastind brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Acetate fiber construction ensures high toughness and shatter-proof durability for daily hustle. - • **Extended Reach Mastery:** 140-inch PU spring wire lets you conquer hard-to-access circuits with ease and flexibility. - • **Pierce & Probe Like a Pro:** Sharp stainless steel probe designed to effortlessly pierce wires without damage. - • **Precision Voltage Insight:** Experience pinpoint 0.1V accuracy on a crisp white backlit LCD for flawless diagnostics. - • **Versatile Voltage Compatibility:** Seamlessly test automotive and low voltage circuits from 3V up to 48V — your all-in-one tool. ## Overview The Jastool Heavy Duty 3-48V Digital LCD Circuit Tester is a professional-grade automotive and low voltage tester featuring a highly accurate 0.1V white backlit display, a durable stainless steel probe for wire piercing, and an extended 140-inch PU spring wire for easy access to hard-to-reach areas. Built with shatter-proof acetate fiber, it’s engineered for toughness and reliability in demanding environments. ## Description Jastool Professional Digital Circuit Tester 3-48V Designed for car electrical circuits,automotive battery, battery charging systems,ignition systems,which is a must have tool for any automotive engineer ,electronic engineer or circuits DIY . *3-48v widely use for low voltage circuits test. *.1 Accuracy voltage reading on white backlit digital display. *.Made with sharp stainless steel probe for piercing wires, for hard to reach areas. *.Portable 140 In long enough PU spring wire for easy operation *.Constructed with acetate fibre, high toughness and shatter-proof. ## Features - 3-48v Widely Use Circuit Tester,designed to check vehicles electrical circuits and other 3-48v wiring and circuits - .1 V Accuracy voltage reading on white backlit digital display - Made with sharp stainless steel probe for piercing wires, for hard to reach areas. - Portable 140 inch long enough PU spring wire for easy operation - Constructed with acetate fibre, high toughness and shatter-proof ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Zhaohong Instruments | | Part number | JTCVT-01B | | Item Weight | 222 g | | Product Dimensions | 33.02 x 10.16 x 3.81 cm; 222 g | | Item model number | JTCVT-01B | | Size | 3-48V digital circuit tester | | Colour | White | | Style | Modern | | Material | Stainless Steel | | Power source type | Battery Powered | | Item Package Quantity | 1 | | Specification met | REACH | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Brand:** JASTIND - **Power source:** Battery Powered - **Style:** Modern - **Colour:** White - **Item weight:** 0.22 Kilograms ## Images ![Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe - Image 1](https://m.media-amazon.com/images/I/61C7EHxCINL.jpg) ![Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe - Image 2](https://m.media-amazon.com/images/I/61vaKn+DhLL.jpg) ![Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe - Image 3](https://m.media-amazon.com/images/I/61aiqeVAlCL.jpg) ![Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe - Image 4](https://m.media-amazon.com/images/I/61tmKpRhmwL.jpg) ![Jastool Heavy Duty 3-48V Digital LCD Display Circuit Tester with 140 inch Extended Spring Wire,Car Truck Vehicles Low Voltage Tester,Automotive Test Light with Stainless Probe - Image 5](https://m.media-amazon.com/images/I/61gSxP2JIGL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Can you ground these to anything like your truck? A bolt ect** A: Yes. Any metal that is attached to the frame. It should be cleaned with sandpaper or a wire brush first before you attempt to ground it. **Q: Will this work well on positive ground 6 volt vehicles on do you have a netter tool** A: If you can hold the prong on the “positive ground” and somehow make a contact from an alligator clip to the wire you are trying to test... then yes. But definitely that’s a huge flaw of that device. **Q: Does the screen update quick enough to read codes with obd1? the obd1 flashes power to the tester will it register the "flash"?** A: It’s not designed for that **Q: I purchased several test light assemblies, I am looking for the replacement electrical mechanism.** A: This one is very nice. ## Frequently Bought Together - JASTIND Premium 3-48V DC Digital LCD Display Test Light with 140 Inch Extended Spring Wire, Car Truck Vehicles Low Voltage Tester, Automotive Circuit Tester with Sharp Stainless Probe - JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro Fuse + 1 Puller – for Car/RV/Truck/Motorcycle(2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A) - Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light Tester --- ## 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.tn/products/144387848-jastool-heavy-duty-3-48v-digital-lcd-display-circuit-tester](https://www.desertcart.tn/products/144387848-jastool-heavy-duty-3-48v-digital-lcd-display-circuit-tester) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-28*