The Portable Air Quality Monitor Household HCHO TVOC Monitor is a multifunctional detector designed for monitoring HCHO and TVOC concentrations in the air. With its LCD display and automatic alarm prompt, it provides real-time data monitoring and ensures accurate and quick detection. This compact device is suitable for use in various settings such as offices, living rooms, kitchens, bedrooms, and classrooms. It is particularly useful in houses with new furniture and decorations. Featuring a large LCD display, this air quality monitor allows for easy reading of data at any time. It conveniently displays two sets of data simultaneously, eliminating the need to switch screens. The built-in buzzer automatically alerts users when the formaldehyde concentration reaches 0.1mg/m3. With its simple operation and reliable performance, this detector is a valuable tool for maintaining a healthy living environment. The Portable Air Quality Monitor comes in a sleek white color and has a measurement range of 0-1.999mg/m3 for HCHO and 0-9.999mg/m3 for TVOC. It operates on a low power of 5W and is powered by a 3.7V, 250mAh battery. The package includes the Air Quality Tester, a USB cable for charging, and a user manual for easy setup and operation. With its compact size (130 * 45 * 38mm) and lightweight design (88g), this detector is portable and convenient to use. Key Features: Real-time data monitoring Large LCD display Suitable for various settings Accurate and quick detection Built-in buzzer for automatic alerts Low power consumption Compact and portable design Includes necessary accessories