--- product_id: 497477233 title: "MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide" brand: "ec buying" price: "R524" currency: ZAR in_stock: true reviews_count: 4 category: "Ec Buying" url: https://www.desertcart.co.za/products/497477233-ms1100-gas-sensor-vocs-sensor-for-air-quality-carbon-dioxide store_origin: ZA region: South Africa --- # Adjustable sensitivity & threshold I2C digital calibrated output High precision temp & humidity sensor MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide **Brand:** ec buying **Price:** R524 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe smarter, live better — your air quality guardian awaits! ## Quick Answers - **What is this?** MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide by ec buying - **How much does it cost?** R524 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/497477233-ms1100-gas-sensor-vocs-sensor-for-air-quality-carbon-dioxide) ## Best For - ec buying enthusiasts ## Why This Product - Trusted ec buying brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Customizable Alerts:** Set your own gas concentration thresholds to trigger timely notifications or actions. - • **Seamless I2C Integration:** Plug-and-play digital output compatible with Arduino and microcontrollers for effortless smart projects. - • **Compact & Versatile Design:** Lightweight module perfect for home, office, or DIY environmental monitoring setups. - • **Robust & Stable Performance:** Equipped with advanced MEMS capacitive humidity and temperature sensors for reliable readings. - • **Precision Air Quality Monitoring:** Detects VOCs, CO2, and formaldehyde with 0.1ppm sensitivity for a healthier environment. ## Overview The MS1100 Gas Sensor is a high-precision digital module designed for real-time monitoring of VOCs, CO2, and formaldehyde levels. Featuring an advanced MEMS capacitive humidity sensor and on-chip temperature sensing, it outputs calibrated data via I2C communication, making it ideal for integration with Arduino and other microcontrollers. With adjustable sensitivity and threshold settings, this compact sensor module empowers professionals and hobbyists alike to maintain healthier indoor air quality with reliable, stable performance. ## Description EC Buying MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide Formaldehyde Monitoring TVOC CO2 Gas Sensor Module, Sensor Arduino I2C: desertcart.com: Tools & Home Improvement Review: This works as advertised - That being said, it just produces an analog voltage signal based on it's readings. There's also the option to set a trigger event onboard if values exceed a certain level. I found it to be completely non-responsive to a direct blast from a Co2 canister. That isn't scientific fact, it's just my experience. I wanted to build an AC leak detector based on Co2. I will be moving up to the next level which is an SPI device. I expect it will make far more data available to my micro controller. I'd definitely be willing to select this module for an application without a micro controller. I don't know if I'd trust it for a safety response system. But I'm also not saying you can't. I haven't tested it in the fire/smoke detection range. It goes crazy from electronic cigarette vapor. It will also respond very slightly to a direct slow exhale of breath. Just be sure that this module will suit your needs. I require a more complex form of multi-molecular analysis which this simply isn't intended for. Review: Electrical eng. project, good fit - Worked perfect for my electrical engineering class, instrumentation and measuements. ## Features - High Precision Digital Temperature and Humidity Sensor Measurement Module I2C Communication; The sensor outputs a calibrated digital signal in standard I 2C format. - The CJMCU-1100 is equipped with a newly designed ASIC-specific chip,an improved MEMS semiconductor capacitive humidity sensing element and a standard on-chip temperature sensing element. - Used for the detection of household environment and other air. Application and detection concentration range of kitchen equipment: qualitative inspection of 0~1000ppm gas. This product has high sensitivity and stability, and can detect gases above 0.1ppm. - Working voltage: DC 5V; Working current: 100mA; Output analog signal: 2.6-5V. The sensitivity can be adjusted, and you can set the sensor threshold. It can be directly connected to the microcontroller. - Note: This product is American standard and is designed for use in the United States. The socket and voltage vary from country to country. This product may require an adapter or converter to use in your region. For your experience, please check compatibility before purchasing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BF4JDW26 | | Alarm | Audible | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #298,862 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #240 in Gas Detectors & Alarms #312 in Temperature Probes & Sensors | | Brand | EC Buying | | Customer Reviews | 4.0 4.0 out of 5 stars (13) | | Date First Available | September 13, 2022 | | Item Weight | 2.08 ounces | | Item model number | MS1100 | | Manufacturer | EC- BUYING | | Material | carbon | | Measurement Accuracy | 0~1000 PPM | | Number of Items | 1 | | Operating Humidity | 90 percent | | Package Dimensions | 6.22 x 4.25 x 0.83 inches | | Part Number | G21 MS1100 | | Power Source | Battery Powered | | Sensor Type | Carbon Dioxide Sensor | | Style | Modern | ## Product Details - **Alarm:** Audible - **Brand:** EC Buying - **Item Weight:** 0.06 Kilograms - **Manufacturer:** EC- BUYING - **Material:** carbon - **Number of Items:** 1 - **Operating Humidity:** 90 percent - **Power Source:** Battery Powered - **Sensor Type:** Carbon Dioxide Sensor - **Style:** Modern ## Images ![MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide - Image 1](https://m.media-amazon.com/images/I/61mcOIN0jzL.jpg) ![MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide - Image 2](https://m.media-amazon.com/images/I/81exh15mMZL.jpg) ![MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide - Image 3](https://m.media-amazon.com/images/I/71OaQ3UU7LL.jpg) ![MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide - Image 4](https://m.media-amazon.com/images/I/713olTWm2uL.jpg) ![MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide - Image 5](https://m.media-amazon.com/images/I/71cPsoqJyxL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This works as advertised *by B***. on July 11, 2024* That being said, it just produces an analog voltage signal based on it's readings. There's also the option to set a trigger event onboard if values exceed a certain level. I found it to be completely non-responsive to a direct blast from a Co2 canister. That isn't scientific fact, it's just my experience. I wanted to build an AC leak detector based on Co2. I will be moving up to the next level which is an SPI device. I expect it will make far more data available to my micro controller. I'd definitely be willing to select this module for an application without a micro controller. I don't know if I'd trust it for a safety response system. But I'm also not saying you can't. I haven't tested it in the fire/smoke detection range. It goes crazy from electronic cigarette vapor. It will also respond very slightly to a direct slow exhale of breath. Just be sure that this module will suit your needs. I require a more complex form of multi-molecular analysis which this simply isn't intended for. ### ⭐⭐⭐⭐ Electrical eng. project, good fit *by G***8 on September 6, 2025* Worked perfect for my electrical engineering class, instrumentation and measuements. ### ⭐⭐⭐⭐⭐ Works well *by L***4 on August 12, 2025* This sensor works well for what it does, this gas sensor active over 2 yrs, paired with mq9 gas sensor and pm2.5 particle sensor and covers wide range of gasses, have it working with esp32. ## Frequently Bought Together - EC Buying MS1100 Gas Sensor, VOCs Sensor for Air Quality, Carbon Dioxide Formaldehyde Monitoring TVOC CO2 Gas Sensor Module, Sensor Arduino I2C - Ximimark 3Pcs MQ135 MQ-135 Air Quality Sensor Hazardous Gas Detection Module for Arduino - EC Buying GY-SGP30 Gas Sensor, Air Quality Carbon Dioxide Formaldehyde Monitoring TVOC CO2 Gas Sensor Module, a Digital Multi-pixel Gas Sensor for Indoor Air Quality Monitoring,co2 Sensor Arduino I2C --- ## 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.za/products/497477233-ms1100-gas-sensor-vocs-sensor-for-air-quality-carbon-dioxide](https://www.desertcart.co.za/products/497477233-ms1100-gas-sensor-vocs-sensor-for-air-quality-carbon-dioxide) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-08-03*