1. Formaldehyde detector: Formaldehyde is a common harmful gas that exists in new house decoration materials, furniture and home appliances. The formaldehyde detector is an instrument specially used to measure the indoor formaldehyde content. It detects the concentration of formaldehyde in the air through sensors or probes, and provides real-time results or alarm prompts to help you evaluate air quality and take corresponding measures. 2. Indoor Air Quality Tester: The indoor air quality tester can measure multiple parameters such as formaldehyde, volatile organic compounds (VOC), PM2.5 particles, CO2 concentration, humidity and temperature, etc. These metrics are important for measuring the quality and health effects of indoor air. High-precision testers provide accurate measurements so you can understand the condition of your indoor environment. When choosing the right formaldehyde detector or indoor air quality tester, it is recommended that you consider the following factors: - Precision and Accuracy: Make sure the tester has the ability to measure with high precision and deliver reliable results. - Multi-parameter measurement: If you want to know multiple air quality indicators, it may be more practical to choose an instrument that can measure multiple parameters. - Data display and analysis functions: Some test instruments provide functions such as data display, trend analysis, and report generation to help you better understand test results. - Portability and ease of use: Choose a portable or desktop test instrument that suits your usage scenario according to actual needs, and ensure that it is easy to operate and read results.