1. Introduction
The Meterk 9-in-1 Air Quality Detector (Model E21492) is a portable, multifunctional device designed to monitor various air quality parameters in your environment. This detector provides real-time readings for Temperature, Humidity, PM2.5, PM10, HCHO (Formaldehyde), TVOC (Total Volatile Organic Compounds), CO (Carbon Monoxide), CO2 (Carbon Dioxide), and AQI (Air Quality Index).
It is suitable for use in a variety of indoor settings, including homes, living rooms, bedrooms, offices, hotels, and even confined spaces like vehicles or kindergartens, allowing you to quickly assess and understand the air quality around you.
2. Safety Information
- WARNING: DO NOT IMMERSE IN WATER! This device is not waterproof and immersion can cause severe damage.
- Keep the device away from extreme temperatures, direct sunlight, and high humidity.
- Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
- Ensure proper ventilation around the device during operation to allow accurate air sampling.
3. Product Overview
3.1 Components
- Vent: Air intake/exhaust for sensor readings.
- Display Screen: LCD color display for showing readings and status.
- Mute On / Off Button: Controls the device's audible alerts.
- Function Keys (Fn): Used for navigating menus or changing settings (specific functions may vary).
- Buzzer Switch: Physical switch to enable or disable the buzzer.
- Type-C Interface: For charging the device.
- Support Frame: Integrated stand for desktop placement.
3.2 Display Interface
The device features an LCD color display with backlight, making it easy to read data at a glance, even in low-light conditions. The display shows the following information:
- Speech State Icon: Indicates if voice prompts are active.
- Battery Capacity Icon: Shows the current battery level.
- Temperature: Current ambient temperature in degrees Celsius.
- Humidity: Current relative humidity percentage.
- HCHO Concentration: Formaldehyde levels in mg/m³.
- TVOC Concentration: Total Volatile Organic Compounds levels in mg/m³.
- PM2.5 Concentration: Particulate Matter 2.5 levels in ug/m³.
- PM10 Concentration: Particulate Matter 10 levels in ug/m³.
- CO Concentration: Carbon Monoxide levels in PPM.
- CO2 Concentration: Carbon Dioxide levels in PPM.
- AQI: Air Quality Index, a numerical value indicating overall air quality.
- Air Quality Level Indicator: A color-coded bar (Good, Slight, Moderate, Serious) providing an intuitive assessment of air quality based on AQI.
4. Specifications
| Feature | Description |
|---|---|
| Product Model | E21492 |
| Detection Parameters | Temperature, Humidity, PM2.5, PM10, HCHO, TVOC, CO, CO2, AQI |
| Detection Technology | HCHO & CO: Electrochemical; TVOC & CO2: Semiconductor; PM2.5 & PM10: Infrared |
| Display Mode | LCD Color Screen with Backlight |
| Operating Voltage | 5V |
| Battery Capacity | Built-in 1500mAh Lithium Battery |
| Charging Port | Type-C |
| Standby Time | Up to 4 hours (continuous monitoring) |
| Product Size | 157 * 70 * 30mm (6.2 * 2.8 * 1.2 inches) |
| Item Weight | 170g (6.0 ounces) |
| Package Size | 180 * 92 * 48mm (7.1 * 3.6 * 1.9 inches) |
| Package Weight | 300g (10.6 ounces) |
| Certification | CE |
4.1 Detection Ranges
| Parameter | Range |
|---|---|
| Temperature | 0-70℃ |
| Humidity | 0-99 %RH |
| HCHO | 0-9.999 mg/m³ |
| TVOC | 0-9.999 mg/m³ |
| PM2.5 | 0-999 ug/m³ |
| PM10 | 0-999 ug/m³ |
| CO | 0-5000 PPM |
| CO2 | 400-5000 PPM |
| AQI | 0-999 |
5. Setup
- Unpacking: Carefully remove the air quality detector from its packaging. Verify that all components are present.
- Initial Charge: Before first use, fully charge the device using the provided Type-C cable. Connect the cable to the Type-C interface on the device and a compatible 5V USB power source. The battery icon on the display will indicate charging status. A full charge provides approximately 4 hours of continuous monitoring.
- Placement: Place the detector on a stable, flat surface using its integrated support frame. Ensure it is positioned in an area where air can circulate freely, away from direct drafts, heat sources, or areas with high moisture. Avoid placing it too close to walls or objects that might obstruct the vents.
6. Operating Instructions
- Power On/Off: Press and hold the power button (usually integrated with the Mute On/Off button or a separate button as shown in Figure 2) to turn the device on or off. The LCD display will light up upon activation.
- Monitoring: Once powered on, the device will automatically begin continuous 24-hour monitoring of all 9 air quality parameters. Readings will be displayed in real-time on the LCD screen.
- Reading the Display: Observe the values for Temperature, Humidity, PM2.5, PM10, HCHO, TVOC, CO, CO2, and AQI. The color-coded bar at the bottom of the display provides an intuitive visual indication of the overall air quality level (Good, Slight, Moderate, Serious).
- Mute/Unmute Buzzer: Use the 'Mute On / Off' button or the 'Buzzer Switch' to toggle audible alerts. This is useful if you prefer silent monitoring.
- Using Function Keys (Fn): The 'Fn' (Function) key may allow you to cycle through different display modes, view historical data, or adjust specific settings. Refer to the full PDF manual for detailed instructions on advanced functions.
7. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners, solvents, or immerse the device in water.
- Storage: When not in use for extended periods, store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Recharge the device when the low battery indicator appears.
- Sensor Longevity: Avoid exposing the device to extremely high concentrations of pollutants for prolonged periods, as this may affect sensor lifespan and accuracy.
8. Troubleshooting
- Device not turning on: Ensure the battery is charged. Connect the device to a power source using the Type-C cable and try again.
- Inaccurate readings: Ensure the device is placed in an open area, away from direct drafts, strong odors, or extreme temperatures. Allow a few minutes for sensors to stabilize after powering on or moving the device.
- Display not working: Check battery level. If the issue persists after charging, contact customer support.
- Buzzer not sounding: Check the 'Mute On / Off' button or 'Buzzer Switch' to ensure it is not muted.
9. User Tips
- For the most accurate readings, especially for HCHO and TVOC, allow the device to operate in a new environment for at least 5-10 minutes to acclimatize.
- Regularly check the AQI level and the color indicator to quickly understand the overall air quality and take appropriate action if levels are moderate or serious.
- Keep the device charged to ensure continuous monitoring, especially if you rely on its 24-hour data.
10. Warranty and Support
For detailed warranty information and customer support, please refer to the official documentation or contact the manufacturer directly.
- Manufacturer: shanghai qiu bo mao yi Co., Ltd.
- Manufacturer Address: Room 057, Building 4, No. 589, Xuefu Road, Jinshanwei Town
- Manufacturer Email: b165sumaitn2828@163.com
- Manufacturer Telephone: 86-13476659228
- EU Authorized Representative: SOLID AUTHORITY LIMITED
- EU Representative Address: 51 Bracken Road, Sandyford, Dublin 18, D18 CV48
- EU Representative Email: phoebe8706@gmail.com
- EU Representative Telephone: 33-761441379
A comprehensive User Manual in PDF format is available for download or viewing at the following link: User Manual (PDF)
