ygc-bg-m wall-mounted multi-in-one sensor can measure light intensity, temperature, humidity, co2 and other environmental elements, with high-grade shell, ip65 protection grade, rain and snow resistant and breathable. The product adopts American imported industrial grade microprocessor chip, Swiss imported high precision temperature and humidity chip, to ensure the excellent reliability, high precision and interchangeability of the product. The sensor can be easily connected with other acquisition devices and obtain data through rs485/rs232 output interface and standard modbus protocol. At the same time, the device can output up to 4 analog signals (current and voltage output). Digital signal output adopts standard modbus or ascii protocol, supports secondary development, stable and reliable, and is easy to install.