--- product_id: 16457136 title: "D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16\" (52mm) Gauge - White Faceplate (Red)" brand: "apsx" price: "€ 13.33" currency: EUR in_stock: false url: https://www.desertcart.gr/products/16457136-d2-digital-wideband-o2-air-fuel-ratio-controller-all-in store_origin: GR region: Greece --- # On-board controller reduces wiring complexity 5 vibrant LED color options for instant fuel type & AFR status Multiple outputs: analog, digital, simulated narrowband D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) **Brand:** apsx **Price:** € 13.33 **Availability:** ❌ Out of Stock ## Summary > 🚗 Tune like a pro, see every drop—your engine’s new best friend! ## Quick Answers - **What is this?** D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) by apsx - **How much does it cost?** € 13.33 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/16457136-d2-digital-wideband-o2-air-fuel-ratio-controller-all-in) ## Best For - apsx enthusiasts ## Why This Product - Trusted apsx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Vivid LED Feedback:** Stay ahead with a sweeping LED needle that visually signals rich to lean air-fuel ratios in real-time. - • **On-Gauge Programming:** Adjust limits and calibrations directly on the gauge—no PC or tablet needed, perfect for on-the-go tuning. - • **Fail-Safe Connectivity:** Locking connectors ensure foolproof installation—no wrong connections, no downtime. - • **Plug-and-Play Simplicity:** Get your engine monitoring up and running in minutes with minimal wiring hassle. - • **Versatile Fuel Compatibility:** Supports E85, Diesel, Gasoline, and Methanol with customizable settings tailored to your ride. ## Overview The APSX D2 Digital Wideband O2 Air Fuel Ratio Controller combines a sleek 2 1/16" gauge with advanced on-board control, offering analog and digital outputs compatible with EMS and data loggers. Featuring a bright, anti-glare faceplate and customizable LED colors, it supports multiple fuel types and provides real-time air-fuel ratio feedback with fail-safe connectors and easy on-gauge programming for seamless installation and precise tuning. ## Description Faceplates can be BLACK or WHITE Item Specifications: D2 wideband controller gauge features: 1 - Less wiring - controller on-board 2 - Simple installation - plug-and-play 3 - One of the five bright LED color options (Red / Green / Orange / Blue / White) per gauge for four configurable types of fuel (E85, Diesel, Gasoline and Methanol) and lambda display 4 - Sweeping LED "needle" indicator from rich (green) then normal (orange) to lean (red) 5 - Fail safe LOCKED connector - it is not possible to make a wrong connection 6 - Anti-glare faceplate - Non-destructable polycarbonate. Additional faces are paid extra 7 - Multiple outputs for digital (to PC), analog (to data logger / EMS), narrowband for simulation and extra switch options 8 - On-Gauge Programming Button - No need a PC or tablet for programming upper/lower limits and other settings OUTPUTS 1 - Analog 0-5V (9=19 AFR) linear output for engine management systems (EMS) and data loggers (MegaSquirt) 2 - Digital output is 9600 8N1 serial that can be connected to your PC 3 - Simulated NB output WIRING - APSX D2 has a 4ft output cable (5 cables / green-white-red-brown-black) - Red power cable goes to 12V source in your vehicle - Black cable goes to a grounded source such as battery ground (-) post - Green digital output is 9600 8N1 serial that can be connected to your PC - If you want to connect other devices such as data loggers or AFR gauges, you can use white analog cable for 0-5V output - Brown narrowband cable is for simulated NB In The Box: D2 gauge assembly, pre-assembled output and oxygen sensor cables with connectors and Bosch LSU4.2 (part# 17014). D2 assembly includes anti-glare faceplate, black bezel, bung and LED display. ## Features - Analog output for engine management systems (EMS) and data loggers (MegaSquirt) - Digital output is 9600 8N1 serial that can be connected to your PC - Simulated NB output - Configurable settings such as fuel type, lower/upper limits, calibration ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | APSX | | Brand | APSX | | Item Weight | 1 pounds | | Product Dimensions | 2 x 1 x 2 inches | | Item model number | APSX_D2_WRG | | Is Discontinued By Manufacturer | No | | Manufacturer Part Number | APSX_D2_WRG | ## Images ![D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) - Image 1](https://m.media-amazon.com/images/I/61SqaRKw-xL.jpg) ![D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) - Image 2](https://m.media-amazon.com/images/I/61-ihMIqEfL.jpg) ![D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) - Image 3](https://m.media-amazon.com/images/I/61Bw8buz-RL.jpg) ![D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) - Image 4](https://m.media-amazon.com/images/I/61GkK1aCnfL.jpg) ![D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge - White Faceplate (Red) - Image 5](https://m.media-amazon.com/images/I/71k+jOdjcZL.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.gr/products/16457136-d2-digital-wideband-o2-air-fuel-ratio-controller-all-in](https://www.desertcart.gr/products/16457136-d2-digital-wideband-o2-air-fuel-ratio-controller-all-in) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-04-24*