Real Instruments CO2 Air Quality Monitor, Temperature, Relative Humidity, 24H Real Time Monitor, Built-in 2000 MAh Battery, CO2 Carbon Dioxide PPM Level, AQM-11

Simple Operation: Measures PM1, PM2.5, PM10, temperature, humidity, and CO₂ for complete indoor air monitoring.

Portable Design: 24-hour real-time tracking helps ensure your air stays safe and clean.

Easy to Use: One-button operation, suitable for children and the elderly.

Portable Size: Compact (3.54 × 3.54 × 1.97 in) and easy to carry anywhere.

Alarm Function: Double-press the power button to enable/disable alarm; it beeps when CO₂ exceeds 1000 ppm.

Clear Display: Large LCD screen shows CO₂, temperature, humidity, and auto-switching PM1/PM2.5/PM10 every 5 seconds.

Temperature Unit Switch: Click the power button to change between °C and °F.

Rechargeable Battery: Built-in 3000mAh battery supports over 10 hours of use and 24-hour air monitoring.

Accurate Testing: Quickly measures CO₂, temperature, and humidity with high accuracy.

Real-Time Sensors: Advanced electrochemical sensors provide fast and reliable data.

WiFi Feature: Allows remote air-quality monitoring—ideal for homes, offices, schools, hospitals, greenhouses, etc.

Stable & Durable: 2000mAh battery option, clear screen, and 3-color LED indicator for easy air-quality identification.

Lightweight & Compact: Portable design (5.91 × 2.91 × 3.23 in), stylish and long-lasting.