--- product_id: 76581104 title: "3903 39030 ECF-1: Ethanol Content%, Fuel Pressure/Temp, & WIDEBAND AIR/Fuel Ratio Gauge" brand: "innovate motorsports" price: "€ 956.28" currency: EUR in_stock: true reviews_count: 4 category: "Innovate Motorsports" url: https://www.desertcart.hr/products/76581104-3903-39030-ecf-1-ethanol-content-fuel-pressure-temp-wideband store_origin: HR region: Croatia --- # Ethanol Content % precision Fuel Pressure up to 145 psi Fuel Temperature sensor 3903 39030 ECF-1: Ethanol Content%, Fuel Pressure/Temp, & WIDEBAND AIR/Fuel Ratio Gauge **Brand:** innovate motorsports **Price:** € 956.28 **Availability:** ✅ In Stock ## Summary > ⛽ Tune smarter, drive faster — never miss a beat with the ultimate ethanol gauge! ## Quick Answers - **What is this?** 3903 39030 ECF-1: Ethanol Content%, Fuel Pressure/Temp, & WIDEBAND AIR/Fuel Ratio Gauge by innovate motorsports - **How much does it cost?** € 956.28 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/76581104-3903-39030-ecf-1-ethanol-content-fuel-pressure-temp-wideband) ## Best For - innovate motorsports enthusiasts ## Why This Product - Trusted innovate motorsports brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Interchangeable Design:** 2 1/16 inch gauge body with customizable faceplates and bezels to match your style - • **Custom OLED Display Modes:** Switch between 1, 2, or 4 channel views for tailored data at a glance - • **All-in-One Performance Monitor:** Track ethanol %, fuel temp, pressure & AFR in one sleek gauge - • **Patented Digital O2 Sensor Tech:** Advanced sensor control ensures reliable, real-time air/fuel ratio monitoring - • **High-Accuracy Fuel Pressure Sensor:** Measures up to 145 psi (10 bar) for precise engine tuning ## Overview The Innovate Motorsports 3903 ECF-1 is a cutting-edge 4-in-1 gauge combining ethanol content %, fuel temperature, fuel pressure (up to 145 psi), and wideband air/fuel ratio monitoring. Featuring a customizable OLED display and patented digital O2 sensor technology, it delivers precise, real-time data essential for high-ethanol fuel tuning. Its compact 2 1/16 inch body with interchangeable faceplates offers both style and functionality, making it a must-have for performance enthusiasts seeking safety, accuracy, and sleek design. ## Description The ethanol advanced gauges combine our patented Direct Digital O2 Sensor control technology with application specific sensors, an OLED display, and a Sophisticated ethanol content Sensor that also measures fuel temperature. These capabilities allow the user to monitor and capture critical metrics for accurate and reliable tuning while operating with high ethanol content fuel. The ethanol advanced gauges offer the looks, safety and performance enthusiasts demand Review: Quick shipping, seems great. - So far so good. Nice to have a single gauge that shows ethanol %, AFR/Lambda, temp, and pressure. Review: Works awesome and very easy to - Very complete kit. Works awesome and very easy to install ## Features - Four-in-one, ethanol content percentage, fuel temperature, fuel pressure, and wideband air/fuel ratio gauge - OLED user configurable display (one, two, or four channel viewing modes) - 0-145 psi (10 bar) fuel pressure sensor - 2 1/6 inch diameter gauge body with interchangeable faceplates and bezels ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071FRCQNS | | Best Sellers Rank | #1,048,663 in Automotive ( See Top 100 in Automotive ) #745 in Automotive Gauge Sets | | Brand | Innovate Motorsports | | Brand Name | Innovate Motorsports | | Customer Reviews | 4.4 out of 5 stars 20 Reviews | | Global Trade Identification Number | 00856428039036 | | Included Components | Innovate^Motorsports | | Item Dimensions | 10.7 x 7.1 x 2.3 inches | | Item Type Name | ECF-1 Advanced 4 in 1Complete Gauge Kit | | Item Weight | 1.1 Kilograms | | Item dimensions L x W x H | 10.7 x 7.1 x 2.3 inches | | Manufacturer | Innovate Motorsports | | Model | 3903 | | Number of Items | 1 | | Part Number | 3903 | | UPC | 856428039036 | | Unit Count | 1.0 Count | | Warranty Description | 1 year manufacturer | ## Product Details - **Brand:** Innovate Motorsports - **Material:** 100% Innovate Motorsports - **Item dimensions L x W x H:** 10.7 x 7.1 x 2.3 inches - **Item Weight:** 1.1 Kilograms - **UPC:** 856428039036 ## Images ![3903 39030 ECF-1: Ethanol Content%, Fuel Pressure/Temp, & WIDEBAND AIR/Fuel Ratio Gauge - Image 1](https://m.media-amazon.com/images/I/61PNmD-vhbL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quick shipping, seems great. *by R***N on April 22, 2022* So far so good. Nice to have a single gauge that shows ethanol %, AFR/Lambda, temp, and pressure. ### ⭐⭐⭐⭐⭐ Works awesome and very easy to *by K***S on February 18, 2018* Very complete kit. Works awesome and very easy to install ### ⭐ Does not bring a 10 bar fuel pressure sensor *by A***R on October 12, 2024* A lot of stuff was apparently missing from my kit I didn’t notice it till now when Ive finally got the time to install it. It works but I’d say check all the contents a lot of stuff could be missing. Installation was rather difficult but not too bad. For the money I’d rather just go for a E85 gauge for less. A lot do the functions of this gauge require extra stuff either I’m missing or just gotta pay even more for it which makes this insanely expensive for what it comes with. Innovate does make good gauges and is built well just keep aware of the other issues that can come up. Foment is really lose in most gauge pods I had to use double sided tape to keep it in place. ## Frequently Bought Together - Innovate Motorsports 3903 39030 ECF-1: Ethanol Content%, Fuel Pressure/Temp, & WIDEBAND AIR/Fuel Ratio Gauge - GlowShift Universal Black Single Gauge Swivel Dashboard Pod - Fits Any Make/Model - Swivels 360 Degrees - ABS Plastic - Mounts (1) 2-1/16" (52mm) Gauge to Vehicle's Dash --- ## 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.hr/products/76581104-3903-39030-ecf-1-ethanol-content-fuel-pressure-temp-wideband](https://www.desertcart.hr/products/76581104-3903-39030-ecf-1-ethanol-content-fuel-pressure-temp-wideband) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-16*