--- product_id: 729332051 title: "CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide" brand: "gain express" price: "VT57767" currency: VUV in_stock: true reviews_count: 7 category: "Gain Express" url: https://www.desertcart.vu/products/729332051-co2-meter-air-quality-monitor-handheld-co2-monitor-0-9999ppm store_origin: VU region: Vanuatu --- # 0-9999 ppm CO2 Range, 1 ppm Resolution Audible CO2 Alarm for Safety Temp & Humidity Triple Display CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide **Brand:** gain express **Price:** VT57767 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe Smart, Work Smarter — Your Air Quality Guardian ## Quick Answers - **What is this?** CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide by gain express - **How much does it cost?** VT57767 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/729332051-co2-meter-air-quality-monitor-handheld-co2-monitor-0-9999ppm) ## 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 - • **Portable & Practical:** Lightweight 200g polycarbonate design fits perfectly in offices, classrooms, hospitals, and beyond. - • **Instant Safety Alerts:** Built-in audible alarm warns you when CO2 levels exceed safe thresholds—stay proactive, not reactive. - • **Precision You Can Trust:** NDIR sensor delivers ±50 ppm accuracy up to 2000 ppm, ensuring reliable readings in any environment. - • **Versatile Power Options:** Runs on included batteries or optional 9V adapter with automatic battery cutoff for uninterrupted monitoring. - • **Comprehensive Air Quality Insight:** Simultaneously track CO2, temperature, dew point, wet-bulb temp & humidity for total IAQ awareness. ## Overview The Gain Express CO2 Meter is a handheld, multi-functional air quality monitor measuring carbon dioxide levels from 0 to 9999 ppm with 1 ppm resolution, alongside temperature, dew point, wet-bulb temperature, and humidity. Featuring a stable NDIR sensor and an audible alarm for high CO2 alerts, it’s designed for professional indoor and outdoor use in offices, schools, and healthcare settings. Powered by batteries or a 9V adapter, this lightweight device ensures precise, real-time air quality diagnostics to keep your environment safe and comfortable. ## Description desertcart.co.jp: CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide : DIY, Tools & Garden Review: まだ使ってないが試したら使いやすそうだ Review: とにかく、値段の変動があり過ぎる二酸化炭素測定器全般。この商品の最安値価格は、15000円台でしたので、その前後の価格での購入をお勧め致します。色が微妙な所が微妙なのと、もう少し小型ならとも思います。性能自体は問題なく優秀です。 ## Features - Multi-functional: This product can measure carbon dioxide (CO2) levels, air temperature, dew point (DP), wet-bulb temperature (WB), and humidity (RH), making it an ideal device for indoor air quality (IAQ) diagnosis Additionally, CO2 levels, temperature (°C/°F) and humidity are triple displayed on the display - Practicality: NDIR sensor for stable CO2 detection: This is an air quality detector used widely in public places such as offices, classrooms, factories, hospitals, and hotels to measure carbon dioxide concentration - Safety Assurance: If the CO2 concentration exceeds the risk value, a warning alarm will sound - Power Supply: There are 2 power supply Battery (included) or 9V adapter (**Note: Adapter is not included in the set) When using a 9V adapter, the battery power is automatically cut off - Measurement range: Carbon dioxide 0 - 9999 ppm (off 2001 - 9999 scale), Resolution: 1 ppm, Accuracy: ±50 ppm (0 - 2000 ppm) reading values ± 5% ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01966BZDY | | Alarm | Audible | | Amazon Bestseller | #164,441 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #18 in CO2 Detectors | | Brand | Gain Express | | Color | Handy type CO2 meter | | Customer Reviews | 4.5 4.5 out of 5 stars (274) | | Enclosure Material | polycarbonate | | Item Weight | 200 Grams | | Manufacturer | Gain Express Holdings Ltd. | | Mfr Part Number | A017755 | | Model Number | A017755 | | Number of Items | 1 | | Power Source | Battery Powered | | Product Style | Multi-functional, practical | | Sensor Type | co 2 Sensor | | UPC | 600316560665 | | Unit Count | 1.0 Count | ## Product Details - **Alarm:** Audible - **Brand:** Gain Express - **Color:** Handy type CO2 meter - **Item Weight:** 200 Grams - **Material:** polycarbonate - **Number of Items:** 1 - **Power Source:** Battery Powered - **Sensor Type:** co 2 Sensor - **Style:** Multi-functional, practical - **Unit Count:** 1.0 Count ## Images ![CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide - Image 1](https://m.media-amazon.com/images/I/71+eOoxRUgL.jpg) ![CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide - Image 2](https://m.media-amazon.com/images/I/81OvJj-1lgL.jpg) ![CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide - Image 3](https://m.media-amazon.com/images/I/81DwTXCoSBL.jpg) ![CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide - Image 4](https://m.media-amazon.com/images/I/71A2WpZNg7L.jpg) ![CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0-9999ppm Carbon Dioxide Concentration Meter/Temperature/Humidity Detector, CO2 Sensor Sensor Indoor Outdoor Air Quality Tester, Carbon Dioxide - Image 5](https://m.media-amazon.com/images/I/81FDhaUwRhL.jpg) ## Questions & Answers **Q: Can you connect a hose for scientific experiments?** A: No. **Q: what is the country of origin?** A: Made it China, but it seems to be an accurate measurement. **Q: Do you sell the software and hardware for data collection separately for this unit?** A: Yes, you can buy the software and cable from the link below. ASIN: B01BWJIRMK URL: https://www.amazon.com/dp/B01BWJIRMK?ref=myi_title_dp **Q: How accurate is the co2 sensor?** A: Very ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by ピ***マ on January 15, 2026* まだ使ってないが試したら使いやすそうだ ### ⭐⭐⭐⭐ Review *by 歯***医 on June 3, 2021* とにかく、値段の変動があり過ぎる二酸化炭素測定器全般。この商品の最安値価格は、15000円台でしたので、その前後の価格での購入をお勧め致します。色が微妙な所が微妙なのと、もう少し小型ならとも思います。性能自体は問題なく優秀です。 ### ⭐⭐⭐⭐⭐ Review *by J***L on October 29, 2025* mide bien y esta bien de precio ## Frequently Bought Together - CO2 Meter Air Quality Monitor Handheld CO2 Monitor 0~9999ppm Measurement Carbon Dioxide Temperature Humidity Detector NDIR Sensor Indoor Outdoor Air Quality Tester - TopTes Decibel Meter, TS-501A Sound Level Meter with 2.25” Backlight LCD Screen, Portable SPL Tester with A Weighted, Range 30-130dB, Data Hold, MAX/MIN, Use for Home, Noisy Neighbor, Factory - Orange - TopTes TS-710 Light Meter, Lux/Foot Candles Meter with 180º Rotating Sensor, 0.1~200,000 Lux Range, Large Backlit Display, Light Meter for Plants, Car Headlights, Home & Office LEDs (Includes Battery) --- ## 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.vu/products/729332051-co2-meter-air-quality-monitor-handheld-co2-monitor-0-9999ppm](https://www.desertcart.vu/products/729332051-co2-meter-air-quality-monitor-handheld-co2-monitor-0-9999ppm) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-08*