Features： 1、Wide detection range, it can respond to the spectral range of 400?700nm, widely used in the research of meteorology, agriculture, air pollution and other fields. 2、With an all?aluminum shell, its protection grade is IP67, which is compact and beautiful, making it more convenient for research. 3、Equipped with a level gauge and an adjustment handwheel, it is convenient for on?site adjustment and can cope with research in different situations. 4、Adopt high?quality cosine corrector, it uses wide voltage power supply DC 7?30V to ensure the cosine response standard. 5、Proportional right?angle cosine, when there is light, it produces a voltage signal proportional to the strength of the incident radiation, and its sensitivity is lower than that of incident light. 6、Adopting a specially treated dust cover, it can reduce dust absorption, effectively prevent environmental factors from interfering with internal components, and can more accurately measure photosynthetic active radiation. 7、Using standard RTU 485 communication protocol, it can directly read the current effective radiation value, and the wiring method is simple. Specification： Item Type: Solar Radiation Sensor Product Width: Approx.8cm / 3.1in Product Height: Approx.5.8cm / 2.3in Model: RS-GH-N01-AL Type: Type 485 Power Supply: DC 7~30V Material: Aluminum Weight: Approx. 308g / 10.9oz Basic Parameters Power Supply Voltage (Default)7V-30V DC Export Method485 (Standard RTU Protocol) Power Consumption0.06W Range Temperature-30℃-75℃ Response Spectrum400nm~700nm Measuring Range0-2500μmol/㎡·s Resolution1μmol/㎡·s Accuracy±2% (1000μmol/㎡·s, 60%RH 25℃) Response Time0.1s Linear≤±1% Yearly Stability≤±2% Field Wiring Instructions Line ColorDescription Power SupplyBrownPower Supply (7-30V DC) BlackPower Negative OutputGreen485-A Blue485-B Basic Communication Parameters Code8-Bit Binary System Data Bit8-Bit Parity BitNot Support Stop BitOne Bit Error CheckingCRC (Redundant Cyclic Code) Baud Rate2400bit/S, 4800bit/S, 9600bit/S Option, Factory Default 4800bit/s RS-Company Code GH-Photosynthetically Active Radiation Sensor N01-485 Output (Standard RTU) ALAluminum Housing Using RTU communication rules, the format is as follows: Initial Structure:≥ 4 Bytes Time Address Code:= 1 Byte Function Code:= 1 Byte Data Area:= N Bytes Incorrect Version:= 16 Bytes CRC Code End Structure:≥ 4 Bytes Time Address Code: The address of the transmitter, which will be the only one in the communication network (factory default 0x01). Function Code: Command function commands from the host, this transmitter only uses function code 0x03 (read register date). Data Area: The data area is the specific communication data. Pay attention to the high byte of the previous 16-bit data. CRC Code: Double-Byte Correction Code. Troubleshooting: 1. If the read value is 0, check whether there is a light source, and check whether the product protective cover has been removed. 2. Please check whether the 485 wiring is correct and whether the wiring is reversed. 3. Check whether the device address of the vehicle is wrong, or there are devices with duplicate addresses (the factory default is 1). 4. Check whether the power supply meets the mark. 5. The equipment is damaged. Product Maintenance: 1. The shell of the product should be kept fluent and clean, and wipe it regularly with a soft cloth. 2. Please regularly check whether it is level and whether the screws are loose. Package List： 1 x Sensor 1 x Connection Line 1 x English Manual