- Precision sensor technology: A compact air quality monitor using a semiconductor TVOC sensor and a high‑quality electrochemical module to deliver accurate, interference‑resistant readings for CO2, CO, temperature, humidity, and formaldehyde. - Large display and multifunction: Clear, easy‑to‑read screen shows current values and also provides time, date, and a stopwatch for everyday use. - Real‑time monitoring and history: Monitor air quality in real time and access historical records to identify trends and make informed adjustments to your space. - Compact, wall‑ready design: Standalone unit with a small footprint suitable for desks, shelves, or wall mounting; built for durable daily use. - Why it matters: Helps protect health by tracking pollutant levels, removes guesswork from IAQ management, and delivers reliable performance you can trust. - Use scenarios: In a home living room or bedroom to monitor VOCs and CO2; in an office or coworking space to maintain comfortable indoor air; in classrooms or labs to keep track of formaldehyde and CO during activities. - What you get: precise function, straightforward readability, and dependable data in a compact, versatile package for everyday environments.