--- product_id: 24663260 title: "APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16\" (52mm) Gauge Blue" brand: "apsx" price: "28.26 DT" currency: TND in_stock: false url: https://www.desertcart.tn/products/24663260-apsx-d2-digital-wideband-o2-air-fuel-ratio-controller-all store_origin: TN region: Tunisia --- # 9600 baud digital output 5 vibrant LED color options 0-5V analog EMS/data logger output APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue **Brand:** apsx **Price:** 28.26 DT **Availability:** ❌ Out of Stock ## Summary > πŸš— Tune Like a Pro, See Every Drop: The APSX D2 Wideband Gauge ## Quick Answers - **What is this?** APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue by apsx - **How much does it cost?** 28.26 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/24663260-apsx-d2-digital-wideband-o2-air-fuel-ratio-controller-all) ## 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 - β€’ **Dynamic LED Sweep:** Visualize your air-fuel ratio instantly with a sweeping LED needle from rich green to lean red. - β€’ **On-Gauge Programming:** Adjust upper/lower limits and settings directly on the gaugeβ€”no PC or tablet needed. - β€’ **Plug-and-Play Precision:** Simplify your install with onboard controller and fail-safe locked connectorsβ€”no wiring headaches. - β€’ **Multi-Output Versatility:** Connect effortlessly to PCs, EMS, and data loggers with digital, analog, and simulated narrowband outputs. - β€’ **Customizable Fuel Profiles:** Switch seamlessly between E85, Diesel, Gasoline, and Methanol with four configurable fuel types. ## Overview The APSX D2 Digital Wideband O2 Air Fuel Ratio Controller combines precision engineering with user-friendly design. Featuring a 2 1/16" polycarbonate gauge with anti-glare faceplate, it offers 9600 baud digital output, 0-5V analog output for EMS and data loggers, and a simulated narrowband output. With five LED color options and on-gauge programming, it supports multiple fuel types and ensures fail-safe installation, making it the ultimate tool for professional-grade air-fuel ratio monitoring. ## 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 | |---------------|-------| | Brand | APSX | | Material | Polycarbonate (PC) | | Item dimensions L x W x H | 2 x 1 x 2 inches | | UPC | 881314598113 | | Global Trade Identification Number | 00881314598113 | | Manufacturer | APSX | | Item Weight | 15.2 ounces | | 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 | ## Product Details - **Brand:** APSX - **Material:** Polycarbonate (PC) - **Item dimensions L x W x H:** 2 x 1 x 2 inches - **UPC:** 881314598113 - **Global Trade Identification Number:** 00881314598113 ## Images ![APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue - Image 1](https://m.media-amazon.com/images/I/61BjU2aXPqL.jpg) ![APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue - Image 2](https://m.media-amazon.com/images/I/61-ihMIqEfL.jpg) ![APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue - Image 3](https://m.media-amazon.com/images/I/61Bw8buz-RL.jpg) ![APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue - Image 4](https://m.media-amazon.com/images/I/61GkK1aCnfL.jpg) ![APSX D2 Digital Wideband O2 Air Fuel Ratio Controller All-in-One 2 1/16" (52mm) Gauge Blue - Image 5](https://m.media-amazon.com/images/I/71k+jOdjcZL.jpg) ## Questions & Answers **Q: What is the black dot/hole near the 12 on the faceplate?** A: It is the daylight sensor that helps adjusting the dim on the LED display. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/24663260-apsx-d2-digital-wideband-o2-air-fuel-ratio-controller-all](https://www.desertcart.tn/products/24663260-apsx-d2-digital-wideband-o2-air-fuel-ratio-controller-all) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-14*