--- product_id: 232087546 title: "DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol)" brand: "dfrobot" price: "S$100" currency: SGD in_stock: true category: "Dfrobot" url: https://www.desertcart.sg/products/232087546-dfrobot-gravity-electrochemical-oxygen-o2-sensor-module-i2c-0-25 store_origin: SG region: Singapore --- # Instant I2C digital output Plug & play, no soldering Fast 15s response time DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) **Brand:** dfrobot **Price:** S$100 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe easy with precision oxygen sensing—plug in, calibrate, and conquer your air quality projects! ## Quick Answers - **What is this?** DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) by dfrobot - **How much does it cost?** S$100 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/232087546-dfrobot-gravity-electrochemical-oxygen-o2-sensor-module-i2c-0-25) ## Best For - dfrobot enthusiasts ## Why This Product - Trusted dfrobot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Robust electrochemical probe with ultra-low drift and 2+ years lifespan, even in harsh environments. - • **Hassle-Free Setup:** Standard 4-pin Gravity interface with included cable—no soldering or messy wiring required. - • **Versatile IoT Ready:** Perfect for smart greenhouses, safety alarms, and DIY projects—compatible with Arduino, ESP32, and Raspberry Pi. - • **Effortless Integration:** Instant digital oxygen readings via I2C—ditch complex ADC math and save coding hours. - • **Precision You Can Trust:** High 0.15% Vol resolution with quick calibration—get accurate ambient O2 data in just 15 seconds. ## Overview The DFRobot Gravity Electrochemical Oxygen O2 Sensor Module delivers precise ambient oxygen measurements (0-25% Vol) with a 0.15% resolution and fast 15-second response time. Featuring a built-in signal conditioning chip, it outputs digital data via I2C for seamless integration with Arduino, ESP32, and Raspberry Pi platforms. Designed for plug-and-play use with no soldering, it supports a wide voltage range (3.3V-5.5V) and offers a robust 2-year lifespan with minimal drift, making it ideal for IoT, environmental monitoring, and safety applications. ## Description DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) | 0.15% Vol Resolution, Manual Single-Point Air Calibration, Compatible With Arduino, ESP32, And Raspberry Pi: desertcart.com: Industrial & Scientific ## Features - [INSTANT DIGITAL READINGS VIA I2C] Stop wrestling with complex ADC formulas! Unlike traditional analog sensors, this O2 module features a built-in signal conditioning chip that outputs precise oxygen concentration directly via I2C interface. Saves hours of coding and eliminates voltage-drop errors, making the project development effortless. - [PLUG & PLAY, NO SOLDERING REQUIRED] Designed with a standard Gravity 4-pin interface and including the connecting cable, users can say goodbye to messy wiring. Supports a 3.3V~5.5V wide voltage input, ensuring compatibility with Arduino Uno ESP32, and Raspberry Pi without needing level converters. - [HIGH PRECISION & QUICK CALIBRATION] Accurately measures ambient oxygen levels (0-25% Vol range) with a high 0.15% resolution and fast response time (≤15s). Worried about complex setups? We provide ready-to-use sample code that allows for a quick air calibration process in natural environments—no expensive calibration gases needed. - [2-YEAR LIFESPAN & HIGH STABILITY] Powered by an electrochemical probe, it offers exceptional resistance to cross-gas interference and ultra-low drift (<2% per month). Built to operate reliably in harsh environments (-20~50°C), delivering a long service life of over 2 years in normal air conditions. - [VERSATILE IoT APPLICATIONS] The ultimate choice for DIY makers, STEM educators, and engineering prototypes. Ideal for monitoring air quality in confined spaces, underground garages, smart greenhouses, mushroom cultivation, and building safety alarm systems. (Note: Designed for ambient air monitoring; not suitable for medical or 100% pure oxygen applications). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08BL1NLGV | | Best Sellers Rank | #122,243 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #242 in Temperature Probes & Sensors | | Brand Name | DFROBOT | | Current Rating | 0.1 milliamps | | Customer Reviews | 4.8 4.8 out of 5 stars (10) | | Item Highlight | 0.15% Vol Resolution, Manual Single-Point Air Calibration, Compatible With Arduino, ESP32, And Raspberry Pi | | Item Weight | 37 g | | Manufacturer | DFROBOT | | Material Type | Nylon | | Maximum Supply Voltage | 5.5 volts_of_direct_current | | Measurement Accuracy | 0.15%Vol | | Measuring Range | 0~25%Vol | | Model | SEN0322 | | Mounting Type | Flange Mount | | Output Type | I2C digital data stream | | Part Number | SEN0322 | | Response Time | 15 seconds | | Specific Uses For Product | Oxygen Sensor | | Style Name | Portable,Compact | | Upper Temperature Rating | 50 °C | ## Product Details - **Brand:** DFROBOT - **Current Rating:** 0.1 milliamps - **Item Weight:** 37 g - **Material:** Nylon - **Style:** Portable,Compact ## Images ![DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) - Image 1](https://m.media-amazon.com/images/I/41usF5q4GPL.jpg) ![DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) - Image 2](https://m.media-amazon.com/images/I/41dxeEZEBQL.jpg) ![DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) - Image 3](https://m.media-amazon.com/images/I/41cwuD7C2eL.jpg) ![DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) - Image 4](https://m.media-amazon.com/images/I/41wd91iDq9L.jpg) ![DFRobot Gravity: Electrochemical Oxygen O2 Sensor Module (I2C, 0-25% Vol) - Image 5](https://m.media-amazon.com/images/I/41aidR0JQ6L.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Gravity: I2C Oxygen Sensor Compatible with Esp32 (0-25% Vol) | High Sensitivity High Stablility High Anti-Interference | Suitable for Portable Air Quality Monitoring Device - ELEGOO UNO Project Super Starter Kit with Tutorial and UNO R3 Board Compatible with Arduino IDE - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects --- ## 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.sg/products/232087546-dfrobot-gravity-electrochemical-oxygen-o2-sensor-module-i2c-0-25](https://www.desertcart.sg/products/232087546-dfrobot-gravity-electrochemical-oxygen-o2-sensor-module-i2c-0-25) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-11*