10 Best co2 detectors in Singapore

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Last Updated - 02/04/2025

Best Choice
01

Qxpztk

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Qxpztk 10 in 1 Indoor Air Quality Monitor with Portable Sensors for CO, PM2.5, CO2,Temperature & Humidity,VOC Sensor and AQI,Accurate Formaldehyde,CO2 Detector Monocular,Suitable for Home,Black E1
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

RELIABLE TEST RESULTS:Including highly sensitive PM2.5 laser sensor and formaldehyde sensor.10-in-1 indoor air quality monitor provides accurate and reliable air detection,track pollutants and contaminants before they become a problem with this always-on indoor
PERFECT COMPANION FOR INDOOR ENVIRONMENTS:Committed to providing users with reliable and accurate air quality monitoring,and continue to promote scientific and technological innovation to improve the quality of the living environment.10-in-1 air quality monitor Use this high-precision smart sensor,Real-time detection of multiple types of air pollution（CO2,VOCs, CO,AQI,PM2.5 & PM10,Formaldehyde）Protect the health of family
LARGER BATTERY CAPACITY:With a powerful 5000 mAh rechargeable lithium polymer battery, you can unplug the air monitor and easily move it to monitor different rooms in your home or office with a standby time of more than 12 hours
KEEP YOUR BREATH GOING:The CO2 detector is perfect if you are near a wildfire – or if you depend on old or wood powered appliances in your home. 10 in 1 is also a carbon dioxide monitor and guards your air quality by letting you know when particulate matter and VOCs are unusually high,When the CO2 exceeds 2000, the color will change to yellow to red, and the buzzer will give a warning
ACCURATE FORMALDEHYDE DETECTOR:Formaldehyde pollution is very harmful to the mucous membranes of the eyes,nose and throat,and needs to be paid attention to at all times.We works tirelessly to ensure the overall quality of every indoor air quality monitor through rigorous testing

S$ 167.61
02

MOESAPU

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8-in-1 Indoor Air Quality Monitor, Formaldehyde Detector, Temperature & Humidity Meter, Sensor, Tester Detect PM2.5, CO, CO2, HCHO,TVOC,AQI Micron Dust, Home Air Test Kits
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

【MULTIFUNCTIONAL& AIR QUALITY MONITOR】 its available for 8 types of data, Total control of air quality，Formaldehyde(HCHO), Volatile Organic Compound(TVOC), Particle MatterPM2.5),Temperature(in ℃),Humidity(in %). To guarantee the health of your family. Before the first use or after long-term storage, please make sure to place it in a ventilated environment (indoor) for at least 1 hour,ensure the accuracy of data.
【HEALTHY HOME?】For everyone,It's necessary to know the air quality of the place where you live.This air monitor have LCD Digital Color Screen, large and easy to read, which have Good(Green), Slight Pollution(Yellow),Moderately Pollution(Red),Severe Pollution(Purple) Four grade. You can directly to know the overall environment quality and track on each gas mean value to know what gas in air is unsafe and take accordingly actions.
【EASY TO OPERATE】Air Quality Detector has a 1500mAh rechargeable lithium battery and packed with Type-C cable that can last up to 6-8 hours. it is easy to operate with just pressing the power on/off button, A button realizes all operations,design with LCD Color Screen Digital Display, it can offer mean value for each gas,It helps detect harmful HCHO and TVOC around your room in the real time.
【COLOR AND SOUND ALARM】You can rate detector real-time tests and analyze, Risk Levels with Time Display, When the Normal is exceeded, the detector alarm sounds and the interface color will change, thus avoiding the risk.
【APPLICATION RANGE】Home, Office, Car, Hotel, Kitchen, Bedroometc. Please notice that this air quality monitor is designed for indoor spaces, so please close the door & windows before testing. Or else the data may not be accurate. We recommend using the monitor and keeping it working for at least 60 minutes before reading the data.

S$ 102.99
Best Value
03

INKBIRDPLUS
20% Off

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INKBIRDPLUS Portable CO2 Detector Mini Indoor CO2 Monitor NDIR Sensor with Full Color LCD Indicator Light Alarm Auto Calibration for Home Office Travel
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Wide Application: You will get—— 1x CO2 detector, 1x lanyard, 1x 2m charging cable, and a user manual. This portable CO2 monitor is suitable for home, office, grow tent, greenhouse, production warehouse, raw material processing, indoor home decoration, and more.
Portable and Long-Lasting: Because of its small size and portability, you can take it anywhere and hang it with the included lanyard. And it comes with a built-in 1000mAh lithium battery that can be fully charged within 3 hours and last about 72 hours.
High-Quality CO2 Detector: INKBIRDPLUS adopts an advanced NDIR sensor, which detects carbon dioxide through infrared sensing technology and has high precision, strong anti-interference, and excellent stability for detecting carbon dioxide concentration at any time and anywhere you stay.
HD Full-Color LCD Display: Its big full-color LCD screen is easy to read and eye-caring. If there is no operation for 5 minutes, it will automatically enter energy-saving ECO mode, causing no disturbance to the surrounding environment.
Dual Alarm Function: This CO2 monitor has CO2 indicator lights on its screen—green light for good (400~699ppm), yellow light for medium (700~1499ppm), and red light for dangerous state (1499~5000ppm). When the detected CO2 concentration exceeds 1500 ppm, the device will also sound an alarm to remind you. And the CO2 alarm value is customizable.

S$ 45.59 S$ 56.99 20% Off
04

Kidde

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Kidde Carbon Monoxide Detector Alarm |Battery Operated | Model # KN-COB-B-LP2 White
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Test/reset button tests the unit for proper operation and resets the carbon monoxide alarm
Model KN-COB-B-LPM is similar to 9CO5-LP
Kidde's carbon monoxide alarms meet the requirements of Underwriters Laboratories (UL)
Battery operated with 3 AA batteries included; provides protection during power outages
Battery lockout system deters closing battery compartment without installation of batteries

S$ 26.82 S$ 29.36
05

INKBIRDPLUS
20% Off

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INKBIRDPLUS Indoor CO2 Detector, Air Quality Monitor, Tester for Carbon Dioxide, Temperature and Relative Humidity, Indoor CO2 Monitor with Alarm, for Grow Tents, Wine Cellars, Homes, Cars(PTH-9C)
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

PREMIUM DETECTOR: This multifunctional air quality monitor can accurately detect the current CO2 concentration, temperature, and humidity in the air. It can help you understand indoor air quality at a glance
CONVENIENT CALIBRATION: To ensure the accuracy of measurement, this CO2 monitor supports the calibration function. Press three buttons at the same time in an open environment and let it stand for 200 seconds to calibrate this CO2 meter easily. This CO2 detector uses the NDIR CO2 sensor
CO2 CONCENTRATION STAGE & SOUND ALARM: This CO2 detector is designed with 3 stages of CO2 concentration—normal stage (400-700 ppm), warning stage (700-1500 ppm), and dangerous stage (1500-5000 ppm). It will alarm you when the detected CO2 concentration is beyond the safe value you customized

S$ 77.59 S$ 96.99 20% Off
06

DOEK

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Indoor Air Quality Monitor, Portable Large Display LCD Carbon Dioxide Detector Temperature Humidity Sensor CO2 Monitor with PM TVOC HCHO CO2 Sensor, for Home Wine Cellar Car
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Realtime Detection: The carbon dioxide detector can do realtime detection, with a built in high performance chip, and uses monitoring technology to report the number of air changes.
LCD Monitor: The air quality detector has an easy to read LCD monitor that displays data while color coding.
Compact Design and Versatility: The air quality detector has a compact design for tabletop placement and wall mounting, low power consumption, and is widely used in agricultural farming, greenhouse farming, etc.
Adjust Brightness: Touch the left and right buttons on the power switch to adjust the brightness of the screen according to the position.
Accurate Display: The sensor module of CO2 detector has high accuracy , good stability and anti interference, and accurately displays CO2 concentration. Humidity display and three measurement modes.

S$ 10.69
07

Inkbird

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INKBIRD INK-CO2W WIFI CO2 Monitor, 3 in 1 Indoor Air Quality Detector, Carbon Dioxide Meter Temperature Humidity Monitor, CO2 Alarm Meter, App Control, Backlit Screen
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Wifi Connection & Remote Montior: This air quality monitor is 2.4GHz Wi-Fi capable and allows us to simultaneously monitor CO2 concentration, temperature, and humidity through the INKBIRD app anywhere anytime. Also, we can view historical data on the graphs and export them for further investigation.
Widely Application: With the CO2 monitor help, we can maintain the best air quality for our family at all times. It can be widely used in grow tent, wine cellar, car, home, office, etc. It is recommended to keep charging to use it.
Real-Time Alert Notification: Set CO2 concentration alarm value first on the INKBIRD APP, when the CO2 value exceeds our preset value, we will get alerted and get a notification message sent through the app as well.
Practical Design: This CO2 detector has a beautiful green appearance with a large color screen, allowing us to view all values at one glance. To meet different reading needs, we can easily switch temperature units between ℃ and ℉. Besides, it equips with a backlit screen and realizes checking the air quality value even in the dark.
Easy Calibration: This detector supports calibration to ensure accurate results at all times. We can press three buttons simultaneously to calibrate the detector in an open area, which is simple, easy, and fast.
3 in 1 WIFI CO2 Monitor: INKBIRD Carbon Dioxide Detector is equipped with a premium sensor, which can quickly and sensitively detect CO2 concentration, temperature, and humidity in daily life. Carbon Dioxide Range: 400 ~ 5000 ppm; Temperature Measurement Range: -10°C ~ 40°C; Humidity Range: 20 ~ 80 % RH

S$ 87.99
08

SwitchBot
10% Off

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SwitchBot CO2 Sensor, Carbon Dioxide Concentration Meter, Thermometer/Hygrometer, Alarm - Switchbot Digital, Large Screen, High Accuracy, CO2 Measuring Device, Comfort Index, Weather Forecast, Clock,
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

[Interlocking with SwitchBot Devices] When connected with SwitchBot hub products and smart circuitors, the circuit automatically turns on and off when it exceeds or exceeds the predetermined CO2 concentrations
Equipped with NDIR CO2 sensor and Swiss made temperature and humidity sensor: Uses a NDIR type CO2 sensor recommended by the Ministry of Health and Welfare to provide high precision air quality data. The Ministry of Health, Labor and Welfare recommends that the carbon dioxide concentration is less than 1,000 ppm to maintain good ventilation in the room. In addition, it is equipped with a reliable, high-precision temperature and humidity sensor that always provides the latest and accurate data
Easy to know when to ventilate: CO2 concentration, temperature and humidity, comfort index, weather forecast; *You can see the date and time at a glance. The display displays the air quality, temperature and humidity and comfort of your home, allowing you to see the air environment in your room. You can freely set the comfort range from the app. The weather forecast function requires a hub product
Data Storage and Export: The data can be stored locally for up to 38 days, and the app can be stored for up to 2 years. Visualization of data by graphing changes in CO2 concentration, temperature and humidity. The data (CSV file) can be exported and you can check the history of CO2 concentration, temperature, and humidity
Alert Notification Function & Remote Confirmation: 3 kinds of alerts "warning sound on the main unit, display numbers flash, app notifications*" notifies you of changes in CO2 concentration. Check the CO2 concentration of your room even when you're on the go, and the ventilation alarm lets you know when to ventilate. SwitchBot hub product is required
2-Way Power Supply: Both batteries and Type-C power are OK! With Type-C power supply, you can update your data every 1 second without worrying about running out of battery. You can use the battery wirelessly anywhere
(See weather up to 12 hours away) With SwitchBot hub products, the weather will be displayed up to 12 hours away from your current location, so please use it as a reference when you go out or enjoy outdoor events such as camping
(Check CO2 concentrations and temperature humidity) When connected with smart speakers such as Alexa and Google Assistant, you can check your data by saying "Telling Alexa and CO2 concentration"

S$ 62.80 S$ 70.00 10% Off
09

U UNNI

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CO2 Detector Meter, USB & Battery Operated with 3 Brightness Levels and Alarm, M
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

Ventilation recommended! - 5 CO2 concentration levels with alarm, monitoring the air quality to determine when to ventilate. Increase creativity, concentration, energy. Suitable for classrooms, nurseries, offices, waiting rooms, headaches, at home. Classification of the display: 400 - 5000 ppm, very good - very bad.
USB powered and batteries for fuse: simply connect to the USB cable, which keeps the backlight on, adjust 3 brightness (high, low, off). Table or wall mounting design. 3 x AAA batteries: not included. Only for backup data & temporary testing/calibration.
Monitoring and measuring CO2 levels indoors. - Ensure a safe and healthy environment for your life, work and learning.
High precision: CO2 sensor equipped with a precision component. Calibration is easy to ensure accuracy. CO2 detection range: 400 ~ 5000 PPM, accuracy: +/- 5% + 50 PPM. Temperature measurement range: 14.2°F ~ 122°F, Humidity measurement: 20% to 95%.
Functional CO2, adjustable °C/°F: no longer worry about air quality. CO2 values, temperature and humidity, CO2 historical chart, CO2 concentration levels and adjustable alarm volume, low battery indicator to ensure more convenience.

S$ 90.98
10

TACKLY

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TACKLY CO2 Detector with Air Quality Monitor Sensor - Carbon Dioxide Detector with Indoor Thermometer for Home - Digital Higrometer for Indoor Humidity and Temperature (CO2 + Air Quality Monitor)
8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

★ REAL-TIME DATA MONITORING - This is a carbon dioxide detector that can accurately monitor CO2 concentration, air quality, ambient humidity, and temperature in real time. The product comes built-in with a high-performance chip of a sophisticated infrared sensor, uses big data algorithm recognition, has advanced technology, can already evaluate, and monitor real-time data.
★ PORTABLE AND VERSATILE - This TACKLY measuring device has a lightweight design which makes it a portable CO2 detector for travel due to its small size. It is easy to carry, and you can put it anywhere you want; therefore, it can detect gas quality in terraces, bars, bedrooms, living rooms, kitchens, offices, cars, schools, hotels, campsites. Real-time 24 hours monitoring to protect healthy life and safety, ideal for Christmas holidays.
★ CONJUNCTIVE AND WIDE DISPLAY - It has a large, wide digital display with unified record measurement on common screen. Compared with ordinary and old air quality detectors, its interface design is more concise, intuitive, with clear area division and excellent texture. It works as a temperature gauge, an indoor humidity and CO2 meter
★ CE APPROVAL / QUALITY - TACKLY CO2 and air quality meter is approved by EU agencies, and features CE certification, guarantee of use and product quality. In addition, the CO2 alarm detector is made of high-quality waterproof ABS material, and the data is updated in real time at 1.5 seconds per time, ensuring a very high consumer experience.
★ 4 IN 1: PM 2.5 AIR QUALITY CONTROL - Multifunctional home air quality tester, as it effectively measures CO2, air quality (PM2.5), temperature and humidity. It has independent NDIR sensors for measuring CO2, temperature, humidity, and laser scattering sensor for air quality (PM2.5).

S$ 47.84