Digital | smart CO2 | air quality meter | sensor | 5VDC | 500-5000PPM | Tuya | black
Code: ES-MCH3BAdvanced carbon dioxide meter designed for use in homes, classrooms, offices, and other indoor spaces. This device ensures accurate CO2 measurements and is controlled via the Tuya APP, allowing convenient data monitoring and parameter setting via a smartphone. It uses an NDIR (Non-Dispersive Infrared) sensor, which guarantees long-term accuracy and fast response.
-
Technical Specifications
Power supply: USB / DC 5V
CO₂ measurement technology: Dual NDIR (non-dispersive infrared sensor)
CO₂ measurement range: 500–5000 ppm
CO₂ measurement accuracy: ±40 ppm + reading ×2% (@22°C)
NDIR sensor lifespan: up to 15 years
Display: 320 × 480 px color TFT
Display type: capacitive touch screen
Display dimensions: 76.2 × 52 mm
Operating temperature: 1°C to +85°C
Standby power consumption: ≤0.5W
Device dimensions: 96 × 86 × 32.5 mm
Weight: approx. 200 g
Housing material: PC + ABS durable technical plastic
Control platform: Tuya Smart
Color: blackFunctions
Dual NDIR CO₂ sensor – accurately measures the real carbon dioxide level in the room
500–5000 ppm measurement range – monitors air quality from normal to elevated CO₂ levels
High measurement accuracy – provides reliable and stable readings
15-year sensor lifespan – ensures long-term use
Color TFT display – clearly shows all information
Touch control – convenient and fast settings adjustment
Control via Tuya Smart – data monitoring on the phone and smart functions
Automatic scenarios – can be linked with ventilation or warning systems
USB 5V power supply – simple connection anywhere
Low power consumption – suitable for continuous operation
24/7 air monitoring – continuously monitors indoor air conditionUsage
For household users: helps monitor the air quality in the bedroom, children's room or living room and take care of ventilation in time
For offices and workplaces: allows controlling employee environmental comfort and reducing drowsiness caused by poor air
For schools and educational institutions: helps maintain a healthier microclimate in classrooms, offices or kindergartens
For engineers / automation specialists: suitable for ventilation system testing and creation of smart automation scenarios
For electricians / system installers: convenient to integrate for clients as an additional smart air control solution
For commercial and technical premises: used for continuous air monitoring in server rooms, warehouses, conference rooms and other enclosed spaces.Advantages
Dual NDIR sensor
Accurate real CO₂ readings
Up to 15 years sensor lifespan
Large color touch screen
Low power consumption
Integration with Tuya Smart
Convenient USB 5V power supply
Compact modern design
Suitable for continuous 24/7 monitoringDisadvantages
Powered by cable, therefore there is no internal battery
Measures CO₂ from 500 ppm (not a laboratory ultra-low range)
WiFi network required for full use of smart functionsDoes this device measure the real CO₂ level?
Yes, the device uses a professional Dual NDIR sensor that accurately measures the real carbon dioxide concentration.Can the readings be monitored on the phone?
Yes, the device is compatible with the Tuya Smart application where data can be viewed and settings controlled.Is the device suitable for continuous use?
Yes, due to its low power consumption it can operate continuously in 24/7 mode.Where is this CO₂ meter most commonly used?
It is most commonly used in homes, offices, classrooms, server rooms and other enclosed spaces for air quality monitoring.Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
Love it? Share your thoughts in a review!Write Review Alternative products






