Meteorological Station Louver Weather Station Temperature Humidity Illumination CO2 Sensor Louver Box for Environmental Detection 9-30V YGC BYX M KV V Item Type: Meteorological Station Louver Material: ABS Weight: Approx. 1266g / 44.7oz Features: Atmosphere Temperature, Atmosphere Humidity, Light Strength, CO2 Power Supply: 9-30V Product Size After Bending Plate Installation: Approx. 262x215mm/10.31x8.46in Louver Box Size: Approx. 140x127mm/5.51x5.00in Light Strength: Measuring Range 0-200000Lx (Outdoor), 0-65535Lx (Indoor) , Accuracy ±4%, Resolution 1Lx, Power Consumption 0.1mW CO2: Measuring Range 0-5000ppm, Accuracy ±(50ppm+5%), Resolution 1ppm, Power Consumption 100mW Atmosphere Temperature: Measuring Range -20-50℃ (Analog Signal Output), Accuracy ±0.3℃ (Standard), Resolution 0.1℃, Power Consumption 1mW Atmosphere Humidity: Measuring Range 0-100%RH, Accuracy ±5%RH (Standard), Resolution 0.1%RH, Power Consumption 1mW Sensor Total Power Consumption: Equal to Multielement Power Consumption and Main Board Basic Power Consumption Operating Environment: -40℃-+75℃ Main Board Basic Power Consumption: 200mW Protective Level: IP54 Wiring: Red Wire: VCC Positive Power Supply Green Wire: GND Negative Power Supply Black Wire: Signal Line 1 Yellow Wire: Signal Line 2 White Wire: Signal Line 3 Brown Wire: Signal Line 4 For Modbus CRC Check Steps: 1. Preset the 16 bit register to hexadecimal FFFF, call this register the CRC register; 2. Dissimilarize the first 8 bits of data with the lower bit of the CRC register and place the result in the CRC register; 3. Move the contents of the register one bit to the right (toward the low bit), fill the highest bit with a 0, and check the lowest bit; 4. If the lowest bit is 0: repeat step 3 (move again) if the lowest bit is 1: the CRC register is iso orthogonal to the polynomial A001 (1010 0000 0000 0001); 5. Repeat steps 3 and 4 until right shifted 8 times so that the entire 8 bit data is all processed; 6. Repeat steps 2 to 5 for the next 8 bit data; 7. The final CRC register obtained is the CRC code (the CRC code obtained is low before high). Installation Place Requirements: 1. Good air circulation around 2. Away from exhaust vents, motors and other equipment 3. Away from areas of standing water, fountains, sprinklers, etc.