---
product_id: 205680453
title: "CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter"
brand: "gain express"
price: "S$306"
currency: SGD
in_stock: true
reviews_count: 8
category: "Gain Express"
url: https://www.desertcart.sg/products/205680453-co2-meter-handheld-co2-monitor-9999ppm-measuring-range-carbon-dioxide
store_origin: SG
region: Singapore
---

# CO2 range 0-9999ppm, 1ppm res Triple display: CO2, Temp, Humidity Temp ±0.1°C/°F precision CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter

**Brand:** gain express
**Price:** S$306
**Availability:** ✅ In Stock

## Summary

> 🌬️ Breathe smarter, live better — your air quality guardian on the go!

## Quick Answers

- **What is this?** 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$306 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/205680453-co2-meter-handheld-co2-monitor-9999ppm-measuring-range-carbon-dioxide)

## 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

- • **Data-Driven Insights:** Optional PC software enables real-time logging and analysis to optimize your space’s air quality.
- • **Instant Audible Alerts:** Sound alarm triggers when CO2 levels exceed safe thresholds—stay informed and proactive.
- • **Versatile Power Options:** Use included battery or 9V adapter for uninterrupted monitoring anywhere, anytime.
- • **Advanced NDIR Sensor Technology:** Stable, reliable CO2 detection ensures you never miss critical air quality changes.
- • **Precision Air Quality Monitoring:** Accurately track CO2, temperature, and humidity with 0.1 unit resolution for a healthier indoor environment.

## Overview

The Gain Express Handheld CO2 Meter features a high-precision NDIR sensor with a wide 0-9999ppm CO2 measuring range, plus temperature and humidity monitoring with 0.1 unit resolution. Its triple display and audible alarm keep you instantly informed of air quality changes. Powered by battery or 9V adapter, it supports optional PC logging for professional-grade environmental tracking.

## Description

CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter : desertcart.co.uk: DIY & Tools

Review: Great meter, great value - Great co2 meter bought 4units for drill site work. Very happy
Review: good quality - works well, but it is a bit pricey, though

## Features

- Triple displays of CO2 level, Temperature (°F/ °C) and Humidity (Air, Wet Bulb, or Dew Point Info are all available)
- Stable NDIR Sensor for CO2 Detection. Ideal indoor air quality meter for home, laboratories, hotels, etc
- Sound Warning Alarm notifies operator when CO2 levels reach or exceed a preset threshold
- Power Supplied by Battery (Included) or 9V Adaptor . Optional Software CD for PC Connection Online Logging is also possible.
- Measuring Range:CO2: 0~9999ppm, Resolution : 1ppm,0.1°C/°F, 0.1%RH

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01966BZDY |
| Alarm | Audible |
| Best Sellers Rank | 288,735 in DIY & Tools ( See Top 100 in DIY & Tools ) 50 in CO2 Detectors 3,022 in Scanners & Testers |
| Brand | GAIN EXPRESS |
| Colour | Portable Co2 Meter |
| Customer Reviews | 4.4 out of 5 stars 284 Reviews |
| Item Weight | 200 Grams |
| Item weight | 200 Grams |
| Manufacturer | Gain Express Holdings Ltd |
| Model Number | A017755 |
| Number of Items | 1 |
| Operating Humidity | 0-99 percent |
| Part Number | A017755 |
| Power source | Battery Powered |
| Product Style | Ergonomic |
| Sensor Type | Non Dispersive Infrared |
| Style | Ergonomic |
| UPC | 600316560665 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 60 Degrees Celsius |

## Product Details

- **Alarm:** Audible
- **Brand:** GAIN EXPRESS
- **Colour:** Handheld Co2 Meter
- **Item weight:** 200 Grams
- **Number of items:** 1
- **Operating humidity:** 0-99 percent
- **Power source:** Battery Powered
- **Sensor type:** Non Dispersive Infrared
- **Style:** Ergonomic
- **Upper temperature rating:** 60 Degrees Celsius

## Images

![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)

## Questions & Answers

**Q: Does this detector require calibrating? is so how often and can it be done by user or does it have to be sent off?**
A: CO2 and RH can be calibrated by users,  users can calibrate by themselves if they feel that the readings are inaccurate or users may calibrate it every 2 to 3 months to ensure accuracy,  calibration steps can be found in the user manual.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great meter, great value
*by R***R on 13 April 2026*

Great co2 meter bought 4units for drill site work. Very happy

### ⭐⭐⭐⭐⭐ good quality
*by A***R on 23 September 2024*

works well, but it is a bit pricey, though

### ⭐⭐⭐⭐⭐ Gas equipment
*by P***S on 2 June 2024*

Compact seems to work well I've only used 3 times

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**Shop now:** [https://www.desertcart.sg/products/205680453-co2-meter-handheld-co2-monitor-9999ppm-measuring-range-carbon-dioxide](https://www.desertcart.sg/products/205680453-co2-meter-handheld-co2-monitor-9999ppm-measuring-range-carbon-dioxide)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-10-09*