--- product_id: 2326479 title: "Innova 3420 Smart Test Light / Circuit Tester" brand: "innova" price: "6490 som" currency: KGS in_stock: true reviews_count: 13 category: "Innova" url: https://www.desertcart.kg/products/2326479-innova-3420-smart-test-light-circuit-tester store_origin: KG region: Kyrgyzstan --- # Transparent handle with tri-color LED indicators 6-foot leads for extended reach Detachable twin alligator clamps for versatile connection Innova 3420 Smart Test Light / Circuit Tester **Brand:** innova **Price:** 6490 som **Availability:** ✅ In Stock ## Summary > ⚡ Illuminate your diagnostics with smart precision! ## Quick Answers - **What is this?** Innova 3420 Smart Test Light / Circuit Tester by innova - **How much does it cost?** 6490 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/2326479-innova-3420-smart-test-light-circuit-tester) ## Best For - innova enthusiasts ## Why This Product - Trusted innova brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ergonomic & Safe:** Comfort grip design ensures secure handling during every diagnostic session. - • **Plug & Play Power:** Connects effortlessly via cigarette lighter or power plug for on-the-go testing. - • **Extended Reach, No Limits:** 6-foot leads let you access hard-to-reach circuits with ease. - • **Instant Visual Diagnostics:** Tri-color LEDs (White, Red, Green) provide clear, immediate connection status. - • **Versatile Clamp Connectivity:** Detachable twin alligator clamps adapt to multiple electronic systems seamlessly. ## Overview The Innova 3420 Smart Test Light is a professional-grade circuit tester designed for quick, safe voltage and ground checks across various automotive electronic systems. Featuring a transparent handle with bright tri-color LEDs, 6-foot leads for extended reach, and detachable alligator clamps, it offers ergonomic comfort and versatile connectivity for efficient vehicle diagnostics. ## Description The INNOVA Smart Test Light is designed to safely check voltage and/or ground on several electronic systems, including wiring, fuses, battery, cabling, sensors, switches, and more. Connects using a cigarette lighter / power plug and detachable twin alligator clamps. The 6-foot leads provide long reach connection. Features a transparent handle, which shows bright LEDs to identify connections (white = proper connection to source, red = voltage present and green = ground present). Review: The price! - Cool test light. Product came as described. No problems and shipping was super fast. Review: MORE Than Just a Test Light !! - This combo tool makes a bunch of electrical jobs (listed on the package) a WHOLE lot easier, and the jobs I used it for went smooth as silk. I used it to locate a "CODE" that showed up in the daughter's 1999 Land Cruiser, and saved a TON of money by purchasing an aftermarket part from desertcart (who else??) and installing it myself. Tool comes with Test Light/Circuit Tester with 6-foot cord and cigarette-lighter plug-in; plus a cigarette-lighter socket that connects to Red and Black alligator clamps for connecting to a 12-volt battery or 12-volt outside electrical source. This is the best tool of it's kind that I've ever seen -- good design, well-made, and versatile. In my view, it's a darn good investment . ## Features - Designed to safely check voltage and/or ground on several electronic systems - Connects using a cigarette lighter / power plug and detachable twin alligator clamps - 6-foot leads provide long reach connection - Unique transparent handle shows bright LEDs to identify connections (White = Proper Connection to Source, Red = Voltage Present and Green = Ground Present) - Features ergonomic grip design for comfort and safety ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000KIGL6E | | Best Sellers Rank | #222,377 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #333 in Circuit Testers | | Brand Name | Innova | | Color | Clear | | Compatible Devices | Vehicles (Passenger Cars, Heavy-Duty Trucks) | | Customer Reviews | 4.5 4.5 out of 5 stars (403) | | Global Trade Identification Number | 00042173034208 | | Included Components | Smart Test Light | | Item Dimensions | 6.5 x 1.75 x 10.25 inches | | Item Weight | 0.5 Pounds | | Manufacturer | Innova | | Measurement Type | Voltmeter | | Model | 3420 | | Part Interchange Info | 3420 | | Part Number | 3420 | | Power Source | Corded Electric | | Specification Met | CE, NIST, RoHS, UL | | Style Name | Smart Test Light | | UPC | 666669941063 521375004948 031112406015 758353141870 790725488732 042173034208 999990982482 021112418323 421730342084 043994891513 523161038885 077348890945 | | Unit Count | 1.0 Count | | Warranty Description | 1 year limited | ## Product Details - **Brand:** Innova - **Color:** Clear - **Item Weight:** 0.5 Pounds - **Power Source:** Corded Electric - **Style:** Smart Test Light ## Images ![Innova 3420 Smart Test Light / Circuit Tester - Image 1](https://m.media-amazon.com/images/I/71nO3gQZgOS.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can tester SAFELY be used to test ECM signal going to coil and/or injector?** A: Its current draw is supposed to be about 18mA (green) and 24mA (red), however, the product ships with the following Safety Precautions: 1. For 12V DC systems only. NOT FOR ANY AC VOLT SYSTEM. 2. DO NOT USE THIS TOOL ON COMPUTER CIRCUITRY. 3. DO NOT TEST OR PUNCTURE SPARK PLUG WIRES WITH THIS TOOL. 4. Never use a Test Light to diagnose automotive air bag... **Q: Is this probe safe enough to test 5V automotive reference wiring? Computer safe?** A: Hello. To be honest I’m not sure if it will pickup a 5v refurance I use it On 12 volt I have a power probe with the 5v connector for it. So I’m not 100 on the test ligh work on that **Q: Is this an incandescent bulb or an LED bulb??** A: Led **Q: Does this tester require a connection to the car battery?** A: Has two alligator clips to connect to a car battery and a power plug so you can plug it into the power source in the dash. Works on any 12 volt circuit. I use it to fix cars and my electric trains. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The price! *by B***1 on December 29, 2025* Cool test light. Product came as described. No problems and shipping was super fast. ### ⭐⭐⭐⭐⭐ MORE Than Just a Test Light !! *by R***S on May 5, 2016* This combo tool makes a bunch of electrical jobs (listed on the package) a WHOLE lot easier, and the jobs I used it for went smooth as silk. I used it to locate a "CODE" that showed up in the daughter's 1999 Land Cruiser, and saved a TON of money by purchasing an aftermarket part from Amazon (who else??) and installing it myself. Tool comes with Test Light/Circuit Tester with 6-foot cord and cigarette-lighter plug-in; plus a cigarette-lighter socket that connects to Red and Black alligator clamps for connecting to a 12-volt battery or 12-volt outside electrical source. This is the best tool of it's kind that I've ever seen -- good design, well-made, and versatile. In my view, it's a darn good investment . ### ⭐⭐⭐⭐⭐ Very nice test light with a good grip, and bright LED indicators. *by B***Y on May 4, 2009* This test light has 3 colors: white, red, and green. The white LED indicates that there is voltage going through it, and is useful to add a little light to the area that is being tested. The red LED is for (+), and the green LED is for (-). The brightness of the red LED will help indicate how strong the voltage of the circuit being tested is. This test light is computer safe which is a must for modern electrical systems. It has a built in cigarette lighter style plug that has an internal fuse, and an adapter for connecting the tester directly to a battery. An ordinary test light only indicates the presence of a (+) signal while this tester performs like a logic probe to indicate a ground signal as well. It has a very good ergonomic grip, and is recommended for anybody working on automotive electrical systems. ## Frequently Bought Together - Innova 3420 Smart Test Light / Circuit Tester - Avital 3100LX Security System (W/O Siren) - Directed Install Essentials 451M Door-Lock Relay Assembly --- ## 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.kg/products/2326479-innova-3420-smart-test-light-circuit-tester](https://www.desertcart.kg/products/2326479-innova-3420-smart-test-light-circuit-tester) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-05-08*