Features: Instantly monitor formaldehyde, TVOC, humidity, and time with SFD02's real time display, delivering comprehensive air quality data through its advanced gas analysis capabilities. Track historical HCHO and TVOC trend with precise spatials averaging technology, enabling data drive decisions for improved indoor environment management. Ideal for health homeowners, office managers, and parent seek reliable formaldehyde detection in living space or newly renovated areas. optimizes air safety in bedrooms, classrooms, or workplaces using customizable alarms that triggering when formaldehyde exceed user defineds thresholds. Features intelligent formaldehyde removal calculator that estimates remediation requirements base on room dimension and preferreds purification ways. Specifications: Component:ABS Color:White Size:Approx.95x75x45mm/3.74x2.95x1.77inch The SFD02 is a intelligent indoor air quality tester, design to monitor formaldehyde (HCHO) and TVOC in real time. Ideal for homes and offices, it provide accurate, easy-to-read data and intelligent features to help keep your environment safe and healthy. Package Includes: 1pc Formaldehyde Detector 1pc Manual note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.