--- product_id: 2410713 title: "3631 Heavy-Duty Logic Probe Tester , Red" brand: "otc" price: "Rp2255828" currency: IDR in_stock: true reviews_count: 13 category: "Otc" url: https://www.desertcart.id/products/2410713-3631-heavy-duty-logic-probe-tester-red store_origin: ID region: Indonesia --- # Bright dual LED indicators Heavy-duty stainless steel probe 3-26V multi-range testing 3631 Heavy-Duty Logic Probe Tester , Red **Brand:** otc **Price:** Rp2255828 **Availability:** ✅ In Stock ## Summary > ⚡ Diagnose Like a Pro — Never Miss a Signal! ## Quick Answers - **What is this?** 3631 Heavy-Duty Logic Probe Tester , Red by otc - **How much does it cost?** Rp2255828 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/2410713-3631-heavy-duty-logic-probe-tester-red) ## Best For - otc enthusiasts ## Why This Product - Trusted otc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Visual Feedback:** Bright red & green LEDs decode ground, power & frequency signals - • **Versatile Voltage Range:** Tests 3 to 26 volts for broad automotive diagnostics - • **Ergonomic & Durable Design:** Slim handle with heavy-duty insulated probe and strain relief for comfort & longevity - • **Airbag-Safe & Heavy-Duty Leads:** 12-foot twin clip red coil cord ensures safe, reliable connections on 6-24V systems - • **Comprehensive Sensor Compatibility:** Checks fuel injectors, solenoids, MAF, cam, crank & Hall effect sensors ## Overview The OTC 3631 Heavy-Duty Logic Probe Tester is a professional-grade handheld tool designed for precise automotive electrical diagnostics. Featuring a wide 3-26V testing range, bright dual LEDs for clear signal interpretation, and compatibility with a variety of sensors including fuel injectors and Hall effect sensors, it delivers reliable, airbag-safe testing. Its ergonomic design and heavy-duty stainless steel probe with insulated shaft ensure durability and comfort for everyday use, making it an essential tool for mechanics and DIY enthusiasts alike. ## Description OTC Heavy-duty Logic Probe Tester Multi-functional design allows testing range of 3-26 volts. The bright red and green LEDs interpret voltage signals such as ground, power, and frequency. The tests fuel injectors, solenoids, presence of serial data, and Tach reference signals. The output tests on MAF, Cam, Crank, Hall Effect VRS sensors and more. The high impedance input compatible with computer circuits and sensors. Its features and benefits include air bag safe, 12 feet, heavy-duty twin clip red coil cord lead, checks 6-12-24-volt systems, ergonomic slim designed clear handle, positive contact molded strain relief and heavy-duty stainless steel probe with insulated shaft. Review: OTC 3631 HEAVY DUTTY LOGIG PROBE TESTER - Well I needed a good smart tester as I work on motorcycles for a living I already have one I paid $100 for 20 years ago I bought from the tool truck. I also repair bikes on the side and needed one for at home but didn't want to spend another $100 I needed one that could check for pulse like from the main and pick up coils & fuel injectors also it had to be safe for testing air bags and LED lighting systems as well it had to be cost effective This test light fit the bill and has bright green and red LED'S to indicate ground & positive it will indeed show pulse It works very well the price was right the point is really sharp and it's made by OTC. OTC is one of the makers who produce some other high end quality test equipment for the magor brands like MATCO & USA TOOLS I know this because they made the $100 one I bought 20 years ago off a MATCO truck and it still works great The only thing different between the 2 is the price and the $100 test light has another red LED to shows you have power going to the test light from the battery and this one do's not. But that's not a big deal. Very happy with my purchase Review: Great tool - Made well,works well,buy it you will like it. ## Features - Multi-functional design allows testing range of 3-26 volts - Bright red and green LEDs interpret voltage signals such as ground power and frequency - Tests fuel injectors solenoids presence of serial data and Tach reference signals - Output tests on MAF cam crank hall effect VRS sensors and more ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001GZH1C8 | | Best Sellers Rank | #503,142 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #624 in Circuit Testers | | Brand | OTC | | Brand Name | OTC | | Color | Red | | Compatible Devices | Vehicles, Automotive Electrical Systems | | Customer Reviews | 4.6 out of 5 stars 476 Reviews | | Global Trade Identification Number | 00731413505744 | | Included Components | Product & Instructions Guide | | Item Dimensions | 2.2 x 13.6 x 2 inches | | Item Weight | 1 g | | Item dimensions L x W x H | 2.2 x 13.6 x 2 inches | | Manufacturer | OTC | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 3 volts | | Model | 3631 | | Part Number | 3631 | | Power Source | Battery Powered | | Style | Handheld | | Style Name | Handheld | | UPC | 731413505744 | | Unit Count | 1 Count | | Warranty Description | One (1) year limited warranty | ## Product Details - **Brand:** OTC - **Color:** Red - **Item Weight:** 1 Grams - **Power Source:** Battery Powered - **Style:** Handheld ## Images ![3631 Heavy-Duty Logic Probe Tester , Red - Image 1](https://m.media-amazon.com/images/I/71KjqNHLnVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ OTC 3631 HEAVY DUTTY LOGIG PROBE TESTER *by R***T on September 22, 2015* Well I needed a good smart tester as I work on motorcycles for a living I already have one I paid $100 for 20 years ago I bought from the tool truck. I also repair bikes on the side and needed one for at home but didn't want to spend another $100 I needed one that could check for pulse like from the main and pick up coils & fuel injectors also it had to be safe for testing air bags and LED lighting systems as well it had to be cost effective This test light fit the bill and has bright green and red LED'S to indicate ground & positive it will indeed show pulse It works very well the price was right the point is really sharp and it's made by OTC. OTC is one of the makers who produce some other high end quality test equipment for the magor brands like MATCO & USA TOOLS I know this because they made the $100 one I bought 20 years ago off a MATCO truck and it still works great The only thing different between the 2 is the price and the $100 test light has another red LED to shows you have power going to the test light from the battery and this one do's not. But that's not a big deal. Very happy with my purchase ### ⭐⭐⭐⭐⭐ Great tool *by R***S on September 9, 2024* Made well,works well,buy it you will like it. ### ⭐⭐⭐⭐⭐ Recomendado *by E***S on June 23, 2026* Excelente producto lo utilizo bastante en el taller y me cumple con lo prometido super recomendado ## Frequently Bought Together - OTC 3631 Heavy-Duty Logic Probe Tester , Red - OTC 3634 Heavy-Duty Straight Cord Circuit Tester, Red - OTC 3633 Mini-Coil Cord Circuit Tester , Red --- ## 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.id/products/2410713-3631-heavy-duty-logic-probe-tester-red](https://www.desertcart.id/products/2410713-3631-heavy-duty-logic-probe-tester-red) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-09-19*