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Eoleaf Smart CO2 Sensor

Regular price €129,00
Regular price €149,00 Sale price €129,00
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A Smart & Connected CO2 Sensor

Product highlights

- Precise measurement: our sensor uses NDIR (Non-Dispersive Infrared) technology for precise measurement of the CO2 concentration in the air.

-Extended measuring range: measures CO2 concentrations ranging from 0 to 10,000 ppm, enabling effective monitoring in a variety of indoor environments.

- Real-time data: continuous monitoring of your air quality, with 4 colours representing the 4 CO2 levels with a built-in alarm.

- Smart: the device is Wi-Fi capable so you can control it remotely right from your phone. You can create smart scheduling scenarios and automate its functions.

- Ease of use: can be placed on a desk as well as mounted on a wall.


- Worldwide shipping.
- Two-day delivery.
- Shipping costs are calculated during checkout.
- Zero custom fees, tax charges or import duty.

Technical Specifications


Model Eoleaf Smart CO2 Sensor
Elements measured CO2, Temperature, Humidity
Dimensions 97 × 39 mm (diameter x thickness)
Weight 154 g
Battery life 8-9 hrs
CO2 sensor Measuring range: 0-10000 ppm; Accuracy: ‡ (50+3%) ppm
Colour indicator

0-699 ppm = Green;
700-999 ppm = Blue;
1000-1499 ppm = Orange;
>1500 ppm = Red + Alarm;

Humidity sensor Humidity range: 0-99% RH
Temperature sensor Temperature range: -10° to 50 °C


- 15-day money-back guarantee.
- 2-year Limited Warranty (can be extended to 3 years during checkout).

Eco Index

- Member of 1% for the Planet: we donate 1% of our revenue to environmental associations.
- Durability: our products are made to last. Filters will be available for the entire lifespan of the machine.
- Repairability: we have two dedicated repair centres located in the UK and in France.
- Eco shipping: all our deliveries are carbon neutral. We never use air transport at any point of the supply chain.

A high-quality CO2 sensor

The Eoleaf Smart CO2 Sensor is an advanced device designed to monitor and measure the concentration of carbon dioxide (CO2) in the air.

Featuring cutting-edge technology, this sensor provides continuous monitoring of indoor air quality, making it an essential tool for ensuring a healthy and comfortable indoor environment.

Install it in your home or business and track your indoor air quality in real-time.


Feel safe at home and at work

Feeling a dip in productivity or focus when you are indoors? You're not alone!

Whether you're working or relaxing, the Eoleaf Smart CO2 sensor can monitor your room's CO2 level and let you know when to take a break or open a window.

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Dual channel sensor

Using NDIR (Non-Dispersive Infrared) technology with a wide measurement range from 0 to 10,000 ppm as well as a dual channel, the Eoleaf Smart CO2 Sensor allows you to obtain quick and accurate results in improving your indoor air quality.


Detect danger quickly

The Eoleaf Smart CO2 Sensor transmits data to you in real-time.

Thanks to the 4 LED colours indicating the CO2 level, as well as the alarm indicating when the authorized threshold is exceeded, receive on-time alerts regarding the status of your indoor air quality.


Two placement options

A discreet and easy-to-use device, the Eoleaf Smart CO2 can be either set on a desk or mounted on a wall.


Smart & connected

All our devices come Wi-Fi equipped so they can integrate with the Tuya Smart app (available for both Android and iOS). This allows you to control your devices directly from your phone or with voice commands (compatible with Google Assistant, Alexa, and Siri). You can now control your CO2 sensor and see your indoor air quality remotely.

In addition, you can use the app to access outdoor air quality data for your city and record your own data over the course of a year.

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What is a CO2 sensor and what is it used for?

A CO2 sensor is a device designed to measure the concentration of carbon dioxide (CO2) in the air. It is used to monitor indoor air quality and to ensure that CO2 levels remain within acceptable ranges for both health and comfort.

Why is it important to monitor CO2 levels in the air?

High levels of CO2 in the air can indicate a lack of ventilation and a build-up of pollutants. This can lead to decreased concentration, headaches, increased fatigue, and other health problems. They are also associated with an increased risk of airborne germs contamination. Monitoring CO2 levels allows you to take action to improve air quality and occupant comfort.

How to use a CO2 sensor?

A CO2 sensor is usually placed in a central location in the room at a height of approximately 1.5 to 1.8 metres from the floor. You can install the Eoleaf Smart CO2 sensor on a desk or mount it on a wall. Once installed, the sensor automatically monitors CO2 levels and provides alerts if predefined thresholds are exceeded (1500 ppm in our case).