CO2 and air quality meter | sensor | portable | 350-2000ppm

Technical Specifications

Measurement parameters:
• CO₂: 350–2000 ppm (accuracy ±50 ppm)
• TVOC: 0.000–2.000 mg/m³ (accuracy ±0.01 mg/m³)
• HCHO: 0.000–1.000 mg/m³ (accuracy ±0.01 mg/m³)

Temperature:
• 0–90.0 °C (accuracy ±0.1 °C)
• 32–194 °F (accuracy ±0.1 °F, values above 100 °F displayed as whole numbers)

Humidity: 0–99.0 %RH (accuracy ±0.1 %)
Display: LCD with real-time readings

Alarm:
• Adjustable threshold parameters for CO₂, TVOC, and HCHO
• Audible alarm (on/off)
• Visual air quality indication: Excellent / Good / Pollution

Power supply: built-in 3.7 V rechargeable lithium battery
Charging: via standard safe USB charger
Housing: compact, convenient for carrying

Functions
Measures 5 parameters simultaneously: CO₂, TVOC, HCHO, temperature, and humidity.
Adjustable limits – ability to set individual CO₂, TVOC, and HCHO values.
Audible and visual air pollution alerts.
Celsius / Fahrenheit selection.
Silent mode – visual alerts without sound.
Battery charge indicator with charging animation.
Automatic data saving after changing settings.

Usage
Turn on the device by pressing and holding the power button (startup countdown from 120 s).
Place the meter in a well-ventilated location, avoiding strong airflow and vibration.
Monitor readings on the display: air quality indication, CO₂, TVOC, HCHO, temperature, humidity.
If measuring after long-term non-use, leave the device in a ventilated room for at least 1 hour before measurement.
Turn off the device after use to save battery.

Pros
Wide measurement range – detects not only CO₂ but also TVOC and HCHO.
Accurate readings with 0.1 resolution for temperature and humidity.
Convenient LCD display – easy-to-read data.
Rechargeable battery – no need to constantly replace cells.
Adjustable alarm – adaptable to environmental conditions.
Compact – suitable for various locations.

Cons
Requires 120 s warm-up time after turning on.
Sensitive to vibration and shocks – not suitable for industrial sites with high mechanical disturbances.
After long-term storage, the device should be purged with clean air before measurement.
Not suitable for outdoor use in rain or in areas where liquids may enter.