--- product_id: 632125357 title: "Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ..." brand: "beley" price: "FREE" currency: TND in_stock: null url: https://www.desertcart.tn/products/632125357-transmission-fluid-tester-kit-gasoline-and-diesel-gearbox-oil-diagnostic store_origin: TN region: Tunisia --- # 31.5in flexible probe for hard-to-reach access Optical probe for metal wear & viscosity analysis High-precision temperature sensor (-10°C to 125°C) Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... **Brand:** beley **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🔧 Stay ahead of transmission troubles with precision you can trust! ## Quick Answers - **What is this?** Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... by beley - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/632125357-transmission-fluid-tester-kit-gasoline-and-diesel-gearbox-oil-diagnostic) ## Best For - beley enthusiasts ## Why This Product - Trusted beley brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Extended Reach Probe:** 31.5-inch flexible Teflon hose ensures effortless access to deep transmission tanks. - • **Smart Power Management:** Includes 4 AAA batteries with auto-shutoff and battery level indicator for uninterrupted use. - • **Universal Compatibility:** Accurately tests 95%+ gasoline & diesel transmission fluids to optimize oil change intervals. - • **Ergonomic & Clear Display:** 2.8-inch backlit LCD and silicone grip deliver comfortable, slip-resistant one-handed operation. - • **Lab-Grade Precision Diagnostics:** Instantly detect metal wear, friction, and viscosity decay with advanced optical sensing. ## Overview The BELEY T20 Transmission Fluid Tester Kit combines a 31.5-inch flexible optical probe and high-precision temperature sensor to deliver lab-grade diagnostics for gasoline and diesel transmission oils. Compatible with over 95% of market lubricants, it helps reduce maintenance costs by up to 35% through accurate oil condition analysis. Featuring a clear 2.8-inch backlit display, ergonomic grip, and smart power-saving auto-shutoff, this kit is designed for professionals and DIYers seeking reliable, on-the-spot transmission health insights. ## Description Full description not available ## Features - 1.【WHY NEED IT】Our transmission fluid tester features an advanced optical probe that measures light transmittance within the transmission oil tank, instantly identifying metal wear particles, coefficient of friction, viscosity decay to assess lubricant integrity and transmission performance. Equipped with a high-precision temperature sensor, it delivers actual transmissionoil temperature readings (-10°C to 125°C / 14°F to 257°F),typical application scenarios: transmission failure warning, oil change cycle judgment. - 2.【UNIVERSAL TRANSMISSION OIL ANALYZER】Our dual-mode tester accurately diagnoses degradation, viscosity breakdown, and additive depletion in both gasoline and diesel transmission fluid through separate sampling protocols. Compatible with 95%+ market lubricants, it enables workshops, fleets, and DIY users to optimize oil change intervals with lab-grade precision, reducing maintenance costs by 18-35% (per internal field tests). - 3.【31.5IN FLEXIBLE HOSE WITH HIGH PRECISION PROBE】Engineered for durability and accuracy, this transmission fluid testing accessory features an 31.5in(800cm) flexible Teflon hose resistant to oil, corrosion, and oxidation for long-lasting performance. The integrated high-precision photoelectric sensor probe delivers lab-grade reliability with rapid-response measurements, while the extra-long design ensures effortless access to hard-to-reach areas. - 4.【POWER SUPPLY & AUTO-SHUTOFF】This transmission fluid quality tester operates on 4 included 1.5V AAA batteries, featuring a clear battery level indicator on the screen for easy power monitoring. To conserve energy, the device automatically powers off after 5 minutes of inactivity - perfect for hassle-free maintenance checks and storage. - 5.【UNIQUE DESIGN】This transmission fluid tester features a 2.8-inch LCD backlit display that ensures clear visibility in both bright and dim environments. Its silicone ergonomic grip offers comfortable, slip-resistant handling for stable one-handed operation. - 6.【PACKING LIST】 The kit includes: 1 transmission fluid Tester, 4 AAA batteries (1.5V), and an English manual.We offer a free 36-month warranty on this engine oil testing kit to ensure your shopping experience. If you have any questions about this transmission fluid tester kit, please feel free to contact us and we will provide you with a satisfactory solution as soon as possible. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | BELEY | | Brand | BELEY | | Model | T20 | | Item Weight | 12 ounces | | Product Dimensions | 5.51 x 9.45 x 2.17 inches | | Item model number | T20 | | Batteries | 4 AAA batteries required. (included) | | Manufacturer Part Number | Transmission Oil Tester AS505 | ## Images ![Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... - Image 1](https://m.media-amazon.com/images/I/719nYZTNJzL.jpg) ![Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... - Image 2](https://m.media-amazon.com/images/I/71wZXD7MroL.jpg) ![Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... - Image 3](https://m.media-amazon.com/images/I/71M0qzcTu7L.jpg) ![Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... - Image 4](https://m.media-amazon.com/images/I/71ftB+hd8OL.jpg) ![Transmission Fluid Tester Kit, Gasoline & Diesel Gearbox Oil Diagnostic Tool ... - Image 5](https://m.media-amazon.com/images/I/812cYLYXDRL.jpg) --- ## 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/632125357-transmission-fluid-tester-kit-gasoline-and-diesel-gearbox-oil-diagnostic](https://www.desertcart.tn/products/632125357-transmission-fluid-tester-kit-gasoline-and-diesel-gearbox-oil-diagnostic) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-10*