--- product_id: 49256462 title: "GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter" brand: "gain express" price: "S$310" currency: SGD in_stock: true category: "Gain Express" url: https://www.desertcart.sg/products/49256462-gain-express-co2-meter-handheld-co2-monitor-9999ppm-measuring-range store_origin: SG region: Singapore --- # Humidity 0.1~99.9% ±3%RH CO2 range 0~9999ppm ±5-10% Temp range -10~60°C ±0.6°C GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter **Brand:** gain express **Price:** S$310 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe smarter, work better — your air quality sidekick! ## Quick Answers - **What is this?** GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter by gain express - **How much does it cost?** S$310 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/49256462-gain-express-co2-meter-handheld-co2-monitor-9999ppm-measuring-range) ## Best For - gain express enthusiasts ## Why This Product - Trusted gain express brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Power Flexibility:** Runs on included battery or optional 9V adapter for uninterrupted monitoring during long workdays. - • **Precision You Can Trust:** High-accuracy NDIR sensor delivers reliable CO2 readings up to 9999ppm, ensuring your indoor air quality is always in check. - • **Portable & User-Friendly:** Ergonomic handheld design with easy manual calibration keeps you in control wherever you go. - • **Ideal for Professional Spaces:** Perfect for offices, classrooms, hospitals, and hotels to maintain optimal ventilation and health standards. - • **All-in-One Air Quality Insight:** Monitors CO2, temperature, humidity, dew point, and wet bulb for a comprehensive environmental snapshot. ## Overview The GAIN EXPRESS Handheld CO2 Meter features a high-precision NDIR sensor with a wide measuring range up to 9999ppm CO2, temperature accuracy of ±0.6°C, and humidity accuracy of ±3%RH. Its ergonomic design and dual power options make it ideal for professionals monitoring indoor air quality in offices, schools, and healthcare settings. ## Description GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter : desertcart.co.uk: DIY & Tools ## Features - 【HIGH ACCURACY】CO2 Accuracy: 0~2000ppm(±50ppm or ±5% of the reading); 2000~9999ppm(±10% of the reading) - 【LARGE MEASURING RANGE】CO2: 0~9999ppm ; Temperature: -10~60°C(Accuracy ±0.6°C) ; Humidity: 0.1% ~ 99.9%RH(Accuracy ±3%RH) ; Dew Point: -20.0~59.9°C ; Wet Bulb: -5.0~59.9°C - 【USER-FRIENDLY】Portable Handle Design, Easily manual calibration on CO2 and humidity, Stable NDIR CO2 sensor - 【 POWER SUPPLY】Dual power source: battery (included) or 9V adaptor (**NOTED: adaptor is not included in set). Power from battery is automatically cut off when 9V adaptor is in use - 【APPLICATION】IAQ monitoring and survey, especially on CO2 level and air ventilation become widely applied in public areas such as offices, classrooms, factories, hospitals, and hotels. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0196APHHU | | Alarm | Audible | | Best Sellers Rank | 119,324 in DIY & Tools ( See Top 100 in DIY & Tools ) 18 in CO2 Detectors | | Brand | GAIN EXPRESS | | Colour | Handheld Co2 Meter | | Country of Origin | China | | Customer Reviews | 3.9 3.9 out of 5 stars (98) | | Item Weight | 200 Grams | | Manufacturer | Gain Express Holdings Ltd. | | Model Number | A017755 | | Operating Humidity | 99 percent | | Part Number | A017755 | | Power source | Battery Powered | | Product Style | Ergonomic | | Sensor Type | NDIR | | UPC | 600316560665 | | Unit Count | 1.0 count | ## Product Details - **Alarm:** Audible - **Brand:** GAIN EXPRESS - **Colour:** Handheld Co2 Meter - **Item weight:** 200 Grams - **Manufacturer:** Gain Express Holdings Ltd. - **Operating humidity:** 99 percent - **Power source:** Battery Powered - **Sensor type:** NDIR - **Style:** Ergonomic - **Unit count:** 1.0 count ## Images ![GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter - Image 1](https://m.media-amazon.com/images/I/71+eOoxRUgL.jpg) ![GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter - Image 2](https://m.media-amazon.com/images/I/419ywvAk7bL.jpg) ![GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter - Image 3](https://m.media-amazon.com/images/I/510TVjGwSYL.jpg) ![GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter - Image 4](https://m.media-amazon.com/images/I/51l+nJJ0uJL.jpg) ![GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter - Image 5](https://m.media-amazon.com/images/I/51hnr8fis7L.jpg) ## Questions & Answers **Q: Can this be used in the cab of my van when it does a regenerates and the co2 burn off comes into the cab** A: In the gas industry the comfort level in an indoor environment should not exceed 0.28% CO2 or 2800 ppm over an 8 hour shift. The instrument is suitable to measure this figure and may help you. My advice is to speak to the manufacturer of the instrument to determine whether it is the best tool for the job. As a disclaimer, I’m giving best advice but cannot be accused of any wrong doing as the advice is regarding the gas industry, not regeneration from petroleum or Diesel engines. **Q: How do you recalibrate this or who do you send it too** A: Hi, for calibration steps, please refer to the user manual page 8 - 9. LINK: https://cd50.net/wp-content/uploads/2022/07/7755_E.pdf **Q: Does it show the level of co2 above 2000?** A: Hi, yes, it can show the reading which above 2000. The range of CO2 is 0~9999ppm (2001~9999 out of scale). **Q: Does this comply to BS8494?** A: It works accordingly to BS 8494 but approved by BS is another matter. ## Frequently Bought Together - CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter - Handheld Digital Light Meter Ambient Temperature Measurer with Range up to 200,000 Lux with 4 Digit Color LCD Screen (Black) - Reductor/Bajador de pH Down para cultivo BioBizz Bio-pH- (250ml) --- ## 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/49256462-gain-express-co2-meter-handheld-co2-monitor-9999ppm-measuring-range](https://www.desertcart.sg/products/49256462-gain-express-co2-meter-handheld-co2-monitor-9999ppm-measuring-range) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-22*