4-in-1 CO₂ Air Quality Monitor – Weather station with CO₂, Temperature and Humidity Measurement, Clock, Large LED Display, Air Quality Alarm
Large 4-in-1 Air Quality Detector
The air quality monitor measures four key environmental parameters at the same time: carbon dioxide (CO₂) concentration, temperature, humidity, and time. The device continuously analyzes CO₂ levels in real time, helping maintain a healthy and comfortable indoor environment. The CO₂ measurement range is 400–5000 ppm, temperature range is 0–50°C, and humidity range is 0–99% RH. The monitor is suitable for homes, offices, schools, warehouses, production facilities, and other indoor spaces where air quality monitoring is important.
Large LED Display
The device features a large, clear LED display that allows easy reading of all parameters from a distance. The screen simultaneously shows CO₂ levels, temperature, humidity, and the current time. The built-in clock includes an alarm function with the ability to set up to three independent alarms.
CO₂ Level Indicator and Warning Alarm
The monitor uses a five-level air quality classification based on CO₂ concentration. The ranges are defined as:
• 400–799 ppm – good air quality
• 800–1199 ppm – moderate level
• 1200–1599 ppm – elevated level
• 1600–1999 ppm – unhealthy level
• 2000–5000 ppm – very unhealthy air quality
When the CO₂ concentration reaches or exceeds 1500 ppm, the device activates an audible alarm to notify users that ventilation is required.
Automatic Brightness Adjustment
The built-in light sensor automatically adjusts the display brightness according to the ambient lighting conditions. This ensures the screen remains clearly visible during the day and does not cause glare at night.wi
Smart Design and Easy Installation
The housing is equipped with multiple ventilation openings that ensure proper airflow through the sensors and efficient heat dissipation. The monitor can be placed on a desk or mounted on a wall using the built-in mounting hole, making it suitable for various environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Plug Type | EU |
| Sensors | Infrared CO₂ sensor, optical sensor |
| Detection Technology | Infrared detection (NDIR) |
| CO₂ Detection Range | 400 – 5000 ppm |
| CO₂ Resolution | 1 ppm |
| CO₂ Accuracy | ±(50 ppm + 5% of reading) |
| Temperature Measurement Range | 0 – 50°C |
| Temperature Accuracy | ±1°C |
| Humidity Measurement Range | 0 – 99% RH |
| Humidity Accuracy | ±5% RH |
| Power Supply | USB Type-C, 5 V / 3 A |
| Temperature Units | °C / °F (switchable) |
| Housing Material | ABS |
| Device Dimensions | 230 × 142 × 35 mm |
| Device Weight | 450 g |
| Package Dimensions | 270 × 234 × 46 mm |
| Package Weight | 720 g |
Package Contents
• air quality monitor
• 2 m USB Type-C charging cable
• power adapter
• positioning template
• self-tapping screw set
• user manual (English)
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