Features 1、Integrated Design: Boasting a integrated solution, this weather sensor suitable for testing atmospheric temperature, atmospheric humidity, light intensity, and CO2. Easy to install, requiring only a few screws, maximizing convenience and efficiency 2、Simple Wiring: Featuring all in one design with a single signal cable, this sensor offers convenience in both appearance and wiring. Its minimalistic look and setup blend seamlessly into any environment, enhancing appeal while facilitating maintenance 3、Excellent Material: Crafted with plastic material, the louver box has great UV and aging resisting, ensuring lasting performance even in harsh conditions. Its high reflectivity, low thermal conductivity make it an ideal choice for various applications 4、Efficient and Accurate: Comprehensive in its functions, this weather sensor can measure environmental parameters including atmospheric temperature, humidity, light intensity, and CO2 levels, allowing real time and accurate measurements 5、RS485 Output: Featuring RS485 output, this weather sensor seamlessly integrates into various data acquisition system, ensuring reliable data transfer, making it a versatile solution for a wide range of meteorological and environmental monitoring projects Specifications Item Type: Weather Sensor Product Material: ABS Functions: Atmospheric Temperature, Atmospheric Humidity, Light Intensity, CO2 Power Supply Mode: 9-30V Output Form: RS485 Product Size with Bending Plate: Approx. 262 x 215mm / 10.3 x 8.5in Louver Box Size: Approx. 140 x 127mm / 5.5 x 5in Weight: Approx.1266g/44.66oz Measurement Type Range Accuracy Resolution Power Consumption Luminous Flux 0-200000Lx (Outdoor) ±4% 1Lx 0.1mW 0-65535Lx (Indoor) 0.1mW CO2 0-5000ppm ±(50ppm+5%) 1ppm 100mW Atmospheric Temperature -40-100℃ (Digital Signal Output) ±0.3℃(Standard) 0.1℃ 1mW Atmospheric Humidity 0-100 %RH ±5%RH (Standard) 0.1%RH Sensor Total Power Consumption: Multi Factor Power Consumption + Mainboard Basic Power Consumption Working Environment: -40℃-75℃ Main Board Basic Power Consumption: 200mw Protective Level: IP54 Wire Color and Wiring Sequence (RS485 Signal) Red Wire: VCC Power Supply Positive Pole Green Wire: GND Power Supply Negative Pole Black Wire: 485-A Yellow Wire: 485-B Checking Steps: 1. The preset 16 bit register is hexadecimal FFFF, is called CRC register; 2. The first 8 bit data is different from the lower part of the CRC register or put the result in the CRC register; 3. Move the contents of the register to the right one bit (towards the low), fill the highest bit with 0, and check the lowest bit; 4. If the lowest position is 0: repeat step 3 (shift again) If the lowest position is 1: the CRC register is XOR with polynomial A001 (1010 0000 0000 0001); 5. Repeat steps 3 and 4 until you move to the right 8 times, so that the entire 8 bit data has been processed; 6. Repeat Step 2 to Step 5 to process the next 8 bit data. 7. The resulting CRC register is the CRC code (the resulting CRC code is low before high after). Installation Site Requirements: 1. Good air circulation around 2. Keep away from exhaust ports, motors and other equipment 3. Stay away from areas such as standing water, fountains and sprinklers Package List 1 x Louver Box 1 x Bending Plate 1 x User Manual