Features: Discover the GY 39 module, efficient solution for intelligent environmental monitoring, featuring the MAX44009 Sensors chip and optimized power management for extended battery. The module supports multiple communication protocols, including MCU_IIC and serial interfaces, ensuring integration into various devices. for electronic engineers, enthusiasts, and research institutions, the GY 39 aids in prototypes development, enhancing creativity and precisions in environmental data collection. for home systems, weather stations, and agricultural monitoring, it provide real time data on indoor, detailed weather information, and critical insight for plant growth. Elevateds your climate research with GY 39, offering data output formats to support scientific analysis and decision making, making it essential tool for understanding environmental changes. Specifications: Materials: PCB model: GY-39 Using chip: MAX44009+Sensors+MCU Power supply: 3-5V Module size: 24.3x26.7mm Communication method: MCU_SIC/MCU_Sort/Sensors chip serial port Package Includes: 1PC GY 39 Sensors Module note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.