1. Introduction
This instruction manual provides essential information for the safe and effective use of your Tuya WiFi Air Quality Meter. This portable device is equipped with a high-sensitivity sensor for stable performance and accurate detection of various air quality parameters. It is designed for real-time monitoring of formaldehyde (HCHO), total volatile organic compounds (TVOC), carbon monoxide (CO), carbon dioxide (CO2), particulate matter (PM2.5, PM10), temperature, and humidity. Its 3D porous housing ensures optimal air circulation for precise readings. Please read this manual thoroughly before operation.
2. Safety Information
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
- Keep the device away from water and other liquids.
- Do not attempt to disassemble or repair the device yourself. Refer to qualified personnel for service.
- Use only the provided or a certified Type-C charging cable and a compatible 5V power adapter.
- Ensure proper ventilation around the device during operation to allow accurate air sampling.
- This device is for informational purposes and should not be used as a substitute for professional air quality testing or life-saving equipment.
3. Package Contents
Please check the package for the following items:
- 1 x Tuya WiFi Air Quality Meter
- 1 x Type-C Charging Cable
- 1 x User Manual (this document)
4. Product Overview
4.1 Key Features
- Multi-functional Detection: Measures HCHO, TVOC, PM2.5, PM10, CO, CO2, Temperature, Humidity, and AQI.
- WiFi Connectivity: Real-time data viewing and control via Tuya or SmartLife mobile application.
- Clear Display: Bright 2.8-inch TFT color display with two selectable interface styles.
- Air Quality Classification: Color-coded indicators (Green, Yellow, Orange, Red) for easy interpretation of AQI levels.
- Real-time Curve View: Supports viewing historical trend curves for all 8 parameters.
- Intelligent Alarm: Buzzer alarm function for critical air quality levels.
- Automatic Calibration: Ensures consistent accuracy.
- Portable Design: Compact, lightweight, wall-mountable, with a built-in 2500mAh rechargeable lithium battery and Type-C charging.
4.2 Device Components
The device features a compact design with a display on the front and ventilation holes on the sides for air intake. A power button and Type-C charging port are also present.
5. Setup
5.1 Charging the Device
- Connect the provided Type-C charging cable to the charging port on the device.
- Plug the other end of the cable into a 5V USB power adapter (not included) or a computer USB port.
- The battery indicator on the display will show the charging status. A full charge ensures optimal performance.
5.2 Power On/Off
Press and hold the power button (usually located on the side or back) for a few seconds to turn the device ON or OFF.
5.3 App Connection (for WiFi version)
To view real-time data and control the device remotely, follow these steps:
- Download the Tuya Smart or SmartLife app from your mobile app store (Google Play Store or Apple App Store).
- Register or log in to your account.
- Ensure your mobile phone is connected to a 2.4GHz WiFi network.
- Turn on the Air Quality Meter.
- In the app, tap '+' to add a new device. Follow the on-screen instructions to put the device into pairing mode (this usually involves pressing and holding a button on the device until an indicator light flashes).
- Select the device type (e.g., 'Environmental Sensor' or 'Air Quality Monitor') and proceed with the pairing process.
- Once connected, you can view real-time data and access additional features through the app.
6. Operating Instructions
6.1 Reading the Display
The 2.8-inch TFT color display shows various air quality parameters in real-time:
- HCHO: Formaldehyde concentration (mg/m³)
- TVOC: Total Volatile Organic Compounds concentration (mg/m³)
- PM2.5: Fine particulate matter concentration (ug/m³)
- PM10: Inhalable particulate matter concentration (ug/m³)
- CO: Carbon Monoxide concentration (ppm)
- CO2: Carbon Dioxide concentration (ppm)
- TEMP: Temperature (°C/°F)
- HUMI: Humidity (%RH)
- AQI: Air Quality Index
6.2 Switching Display Interfaces
The device supports switching between two different display interfaces. Refer to the device's physical buttons (if any) or the mobile app for instructions on how to toggle between these views.
6.3 Interpreting AQI and Air Quality Levels
The device uses a color-coded system to indicate air quality levels based on the AQI:
| Color | Level | AQI Range | HCHO (mg/m³) | TVOC (mg/m³) | PM2.5 (ug/m³) | PM10 (ug/m³) | CO (ppm) | CO2 (ppm) |
|---|---|---|---|---|---|---|---|---|
| Green | Good | 0-100 | 0-0.1 | 0-0.6 | 0-75 | 0-100 | 0-50 | 0-799 |
| Yellow | Slight pollution | 100-150 | 0.1-0.2 | 0.6-1.5 | 75-100 | 101-150 | 51-100 | 800-1599 |
| Orange | Moderate pollution | 150-300 | 0.2-0.5 | 1.5-3.0 | 100-150 | 150-200 | 100-200 | 1600-2000 |
| Red | Serious pollution | >300 | >0.5 | >3 | >150 | >200 | >200 | >2000 |
6.4 Real-time Curve View
The device supports viewing the trend curves of the 8 measured parameters over time. This feature can be accessed directly on the device's display or through the connected mobile app.
6.5 Alarm Function
The device features an audible buzzer alarm that activates when certain air quality parameters exceed predefined safe levels. This provides a timely alert for potential air quality issues.
6.6 Application Areas
The Air Quality Meter is suitable for a wide range of environments:
- Home air detection
- Car air detection
- Maternal and child room air detection
- Testing in public places
- Greenhouses, camping barbecues, factories, etc.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use abrasive cleaners or solvents.
- Ventilation Holes: Ensure the ventilation holes are free from dust and obstructions to maintain accurate readings.
- Automatic Calibration: The device features automatic calibration to maintain accuracy. No manual calibration is typically required under normal operating conditions.
- Storage: When not in use for extended periods, store the device in a cool, dry place away from direct sunlight.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on | Low battery; Device not charged | Charge the device using the Type-C cable and a 5V adapter. |
| Cannot connect to Tuya/SmartLife app | Incorrect WiFi network (not 2.4GHz); Device not in pairing mode; App permissions not granted | Ensure your phone is on a 2.4GHz WiFi network. Put the device into pairing mode as per app instructions. Check app permissions on your phone. Restart both the device and the app. |
| Inaccurate readings | Blocked ventilation holes; Device not calibrated; Interference from strong odors/chemicals | Ensure ventilation holes are clear. Allow the device to run for a period for automatic calibration. Move the device away from sources of strong odors or chemicals. |
| Buzzer alarm sounds frequently | High concentration of pollutants detected | Check the display for specific pollutant levels. Ventilate the area immediately. If readings persist, investigate the source of pollution. |
9. Specifications
| Parameter | Value |
|---|---|
| Product Name | Air Quality Tester |
| Material | ABS |
| Color Options | Black, White |
| Battery | Built-in 2500mAh Lithium Battery |
| Working Voltage | 5V |
| Charging Mode | 500mAh Type-C Interface |
| PM2.5 Detection Range | 0-999 ug/m³ |
| PM10 Detection Range | 0-999 ug/m³ |
| HCHO Detection Range | 0-9.999 mg/m³ |
| TVOC Detection Range | 0-9.999 mg/m³ |
| Carbon Monoxide (CO) Detection Range | 0-1000 PPM |
| Carbon Dioxide (CO2) Detection Range | 0-5000 PPM |
| AQI Range | 0-500 |
| Temperature Detection Range | 0-70℃ |
| Humidity Detection Range | 0-99%RH |
| Item Size | 70 x 35 x 90 mm (2.76 x 1.38 x 3.54 in) |
| Item Weight | 130g (4.59 ounce) |
| Package Size | 145 x 100 x 48 mm (5.71 x 3.94 x 1.89 in) |
| Package Weight | 200g (7.05 ounce) |
10. User Tips
- WiFi Connectivity: If you experience issues connecting to the Tuya app, ensure your home WiFi network is 2.4GHz. Many modern routers operate on both 2.4GHz and 5GHz; you may need to temporarily disable 5GHz during the pairing process or ensure your phone is connected to the 2.4GHz band.
- Initial Readings: Upon first use or after moving to a new environment, allow the device some time (e.g., 5-10 minutes) to stabilize and perform automatic calibration for the most accurate readings.
- Placement: For general room air quality monitoring, place the device in a central location, away from direct drafts, windows, or vents that might skew readings.
11. Warranty and Support
For warranty information and technical support, please refer to the seller's policies or contact the retailer where the product was purchased. Keep your purchase receipt as proof of purchase.
