--- product_id: 80919809 title: "Gravity: Analog Infrared CO2 Sensor for Arduino (400~5000 ppm)" brand: "dfrobot" price: "£175.29" currency: GBP in_stock: true reviews_count: 8 url: https://www.desertcart.co.uk/products/80919809-gravity-analog-infrared-co2-sensor-for-arduino-400-5000-ppm store_origin: GB region: United Kingdom --- # 400-5000 ppm precise CO2 range Up to 5 years service life Integrated temperature compensation Gravity: Analog Infrared CO2 Sensor for Arduino (400~5000 ppm) **Brand:** dfrobot **Price:** £175.29 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe smarter, measure sharper with Gravity CO2 Sensor! ## Quick Answers - **What is this?** Gravity: Analog Infrared CO2 Sensor for Arduino (400~5000 ppm) by dfrobot - **How much does it cost?** £175.29 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/80919809-gravity-analog-infrared-co2-sensor-for-arduino-400-5000-ppm) ## 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 - • **Precision CO2 Sensing:** Accurately measures 400-5000 ppm with NDIR tech for reliable air quality insights. - • **Long-lasting Durability:** Engineered for up to 5 years of continuous use—invest once, monitor forever. - • **Plug & Play Compatibility:** Seamlessly integrates with Arduino and any microcontroller with ADC—no hassle setup. - • **Oxygen-Independent Selectivity:** Advanced sensor design minimizes interference for true CO2 detection every time. - • **Smart Temperature Compensation:** Built-in temp adjustment ensures consistent readings regardless of environment. ## Overview The Gravity Analog Infrared CO2 Sensor by DFRobot leverages cutting-edge NDIR technology to deliver precise CO2 measurements from 400 to 5000 ppm. Designed for professional-grade air quality monitoring, it features integrated temperature compensation, oxygen-independent selectivity, and a robust 5-year lifespan. Compatible with Arduino and other microcontrollers, this sensor offers an easy-to-use, durable solution for environmental sensing projects. ## Features - DFRobot released its latest high-precision analog infrared CO2 sensor. The effectively measuring range is from 400 to 5000ppm - This sensor is based on non-dispersive infrared (NDIR) technology and has good selectivity and oxygen-free dependency - Besides, its service life could up to 5 years! It integrates temperature compensation and support DAC output - Most importantly, the product is easy to use; it is compatible with all types of microcontrollers such as Arduino with ADC function ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07CG726Y3 | | Brand Name | DFROBOT | | Customer Reviews | 2.9 2.9 out of 5 stars (16) 2.9 out of 5 stars | | Item Weight | 34 g | | Manufacturer | DFRobot | | Material Type | PCB | | Model | SEN0219 | | Part Number | SEN0219 | | Style Name | simple | | Unit Count | 1 Count | | Upc | 712104673140 | ## Product Details - **Brand:** DFROBOT - **Style:** simple - **Power Source:** Corded Electric - **Color:** Black, Gold - **Item Weight:** 34 Grams - **Alarm:** Visual - **Operating Humidity:** 95 percent - **Sensor Type:** Non Dispersive Infrared - **Material:** PCB - **Manufacturer:** DFRobot ## Images ![Gravity: Analog Infrared CO2 Sensor for Arduino (400~5000 ppm) - Image 1](https://m.media-amazon.com/images/I/61wGb3RXFOL.jpg) ## Questions & Answers **Q: Hello. i am completely new to arduino. the tutorial from manufacture is confusing. is there a better one out there for this sensor?** A: Yes get the 0-50000ppm sensor. This sensor depending on it's application is not the best. For instance I got this sensor to use for a green house controller. This sensor recalibrates itself every 24 hours. This calibration process at the 24 hour mark will report 350-400ppm as it has just calibrated itself and whatever was present prior as far as ppm is now the "normal." So essentially the sensor throws it's own calibration out of whack unless you aren't using it in a co2 enriched atmosphere. There is code from dfrobot to apply instant calibration and to disable the 24 hour calibration cycle. Hope I could help :) **Q: Will this work sitting next to a humidifier? The sensor will be connected to a device programmed to keep the humidity at 95% by using a water mister.** A: This sensor can be used for waterproof steam interference However, it is not recommended to place directly in the humidifier outlet. **Q: Is this acurate enough to control co2 tank solinoids in a garden room?** A: Without some requirement detail about CO2 tank solonoids, I don’t know **Q: Can this read CO2 from an algae culture?** A: It can't read CO2 from an algae culture ## Customer Reviews ### ⭐⭐⭐⭐⭐ Analog output makes this straightforward *by on Reviewed in the United States September 27, 2020* Easy to use -- connect to 5V, 0V, and an ADC input and measure the voltage and calculate how many PPM of CO2 there is. I used an ADS1115 on a Raspberry Pi, but an Arduino would work just fine, as would most other ADCs. It is interesting to note that the concentration does vary, and is higher inside when windows have been closed for a while. ### ⭐⭐⭐⭐ Solid little sensor, got data within minutes of unpacking *by on Reviewed in the United States August 10, 2019* It was very easy to set up, you need to short pin 8 to ground to calibrate it for ~10s while the sensor is exposed to fresh (~410ppm C02) air, then you're set to start playing with it.We have been using it to track C02 levels in our apartment to see what's up with airflow / fresh air.I dropped a star because they put a set of red leds on it that blink, and every time they blink your data gets skewed (you can see this quite apparently in the attached spiky graph, as well in other reviews) but if you apply a lowess filter you can get a very clear look at your C02 levels. The manufacturer does recommend that you filter the output if you want a smooth graph. ### ⭐ Toy sensor not meant for real world applications *by on Reviewed in the United States April 21, 2023* Copped this to monitor CO2 levels in my indoor garden hydroponics garden. Sensor never provided consistent readings and was a bear to program. I am looking at purchasing a dedicated cater co2 Sensor monitoring system from a reputable manufacturer in the future. ## Frequently Bought Together - DFRobot Gravity: Analog Infrared CO2 Sensor for Arduino (400~5000 ppm) - 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.co.uk/products/80919809-gravity-analog-infrared-co2-sensor-for-arduino-400-5000-ppm](https://www.desertcart.co.uk/products/80919809-gravity-analog-infrared-co2-sensor-for-arduino-400-5000-ppm) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-09-03*