9-in-1 Air Quality Monitor – CO2, TVOC, HCHO, CO & Noise
9-in-1 Air Quality Monitor – CO2, TVOC, HCHO, CO & Noise
ATUOTIN 9-in-1 Air Quality Monitor with LCD Display
Stay fully informed about the air around you with the ATUOTIN 9-in-1 Air Quality Monitor. This compact, multifunctional device simultaneously tracks nine key environmental parameters — CO₂, carbon monoxide (CO), TVOC, AQI, benzene (C6H6), formaldehyde (HCHO), noise levels, temperature, and humidity — all displayed in real time on a bright, backlit LCD screen. Perfect for homes, offices, schools, factories, and workshops.
Key Features
- Comprehensive 9-Parameter Monitoring: Measures CO₂, CO, TVOC, AQI, C6H6 (benzene), HCHO (formaldehyde), sound levels, temperature, and humidity simultaneously — giving you a complete environmental picture at a glance.
- Precise Noise Detection: Advanced acoustic chip technology measures sound from 0–150 dB(A) with ±1 dBA accuracy and 1 dBA display resolution, delivering reliable real-time sound level data.
- Large Backlit LCD Screen: The easy-to-read display works clearly even in low-light conditions. Designed for stable desktop placement, it keeps your hands free while monitoring your environment.
- Long-Lasting Rechargeable Battery: The built-in 2000 mAh rechargeable battery provides up to 24 hours of continuous operation on a single 3-hour charge. Type-C charging cable included — red light when charging, green when fully charged.
- Compact & Portable Design: At just 90 × 70 × 35 mm, this lightweight monitor fits easily on any desk or countertop, making it ideal for use across multiple rooms or locations.
Full Specifications
| CO₂ Range | 400–5000 ppm (±50 ±10% ppm), Resolution: 1 ppm |
| CO Range | 0–999 ppm, Resolution: 1 ppm |
| TVOC Range | 0–9.999 mg/m³, Resolution: 0.001 mg/m³ |
| AQI Range | 0–500 ppm |
| HCHO (Formaldehyde) Range | 0–1.999 mg/m³, Resolution: 0.001 mg/m³ |
| C6H6 (Benzene) Range | 0–1.999 mg/m³, Resolution: 0.001 mg/m³ |
| Noise Range | 0–150 dB(A), Accuracy: ±1 dBA, Resolution: 1 dB |
| Temperature Range | 0–50°C, Accuracy: ±2°C |
| Humidity Range | 0–95% RH, Accuracy: ±8% RH |
| Battery | 2000 mAh, ~24-hour runtime, ~3-hour charge time |
| Charging Port | Type-C |
| Casing Material | ABS Plastic |
| Dimensions | Approx. 90 × 70 × 35 mm (3.54 × 2.76 × 1.38 in) |
| Country of Origin | Made in Mainland China |
How to Use
- Power On/Off: Press and hold the power button. (Readings begin 60 seconds after power-on.)
- Switch Temperature Units: Press the power button once briefly.
- Toggle Sound On/Off: Press the power button twice briefly.
- Manual TVOC Calibration: Press the power button three times briefly.
- Turn Off Screen (device stays on): Press the power button four times briefly.
What's in the Box
- 1 × 9-in-1 Air Quality Monitor
- 1 × USB Type-C Charging Cable
- 1 × Instruction Manual
Learn More About Indoor Air Quality
For guidance on indoor air pollutants and recommended exposure limits, visit the EPA's Indoor Air Quality resource center. You can also find information on carbon monoxide safety from the CDC's carbon monoxide resources.
Note: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the images. Please allow 1–2 cm variance in measurements due to manual measuring.
Frequently Asked Questions
Q: What gases and parameters does this 9-in-1 air quality monitor detect?
A: This air quality monitor detects nine parameters simultaneously: CO₂ (carbon dioxide), CO (carbon monoxide), TVOC (total volatile organic compounds), AQI (air quality index), C6H6 (benzene), HCHO (formaldehyde), noise/sound levels, ambient temperature, and relative humidity — all displayed in real time on the LCD screen.
Q: How long does the battery last and how is it charged?
A: The built-in 2000 mAh rechargeable battery provides up to 24 hours of continuous use on a full charge. Charging takes approximately 3 hours via the included Type-C USB cable. The indicator light turns red during charging and green when fully charged.
Q: Is this air quality monitor suitable for home and office use?
A: Yes! Its compact size (90 × 70 × 35 mm) and desktop-friendly design make it ideal for bedrooms, living rooms, offices, classrooms, workshops, and factories. It provides instant awareness of environmental conditions so you can take action to improve ventilation or air quality as needed.
Q: How accurate is the CO₂ measurement?
A: The CO₂ sensor measures from 400–5000 ppm with an accuracy of ±50 ±10% ppm and a resolution of 1 ppm, offering reliable readings for everyday indoor monitoring. For best accuracy, allow the device to run for at least 60 seconds after powering on before taking readings.