Features： 1、Integrated design, it uses multiple acquisition devices integrated design, built?in electronic compass, no direction requirements, can be installed horizontally, convenient and simple. 2、Ultrasonic principle measurement, it has no angle limit, 360 degrees can obtain omnidirectional wind speed and wind direction data at the same time, and can also be used for noise collection, with a range of up to 30dB~120dB. 3、Using dedicated 485 circuit, it has stable communication, convenient to measure the environmental temperature and humidity, the measurement unit is imported from Switzerland, and the measurement is accurate. 4、It is widely used in various situations that need to measure environmental temperature and humidity, noise, etc. 5、Small size and light weight, it is made of high?quality materials, has a long service life, high probe sensitivity, stability and reliability, and has the characteristics of wide measurement range, good linearity, good waterproof performance, and long transmission distance. Specification： Item Type: Temperature and Humidity Detector Product Size: Approx. 21x10.5cm / 8.3x4.1in Model: RS-FSXCS-N01-3 Name: Small 485 Ultrasonic Integrated Weather Station Power Supply: DC 10-30V Function: Ultrasonic Wind Speed And Direction + Shutter Box + Temperature and Humidity and Other Functions. Weight: Approx. 619g / 21.8oz Material: ABS Power Interface: DC Power Supply 10-30V Power Supply. When using the RTU communication protocol, the format is as follows: Initial Structure: ≥ 4 Bytes Of Time Address Code: = 1 Byte Function Code: =1 Byte Data Area: =N Bytes Error Check: = 16-Bit CRC Code End Time Structure: ≥ 4 Bytes Address Code: the start address of the transmitter, which is unique in the communication network. (Factory Default 0x01). Function Code: Command function instruction issued by the host, this transmitter only uses function code 0x03. (Read Register Data). Data Area: The data area is the specific communication data. First, pay attention to the high byte of the 16-bit data. CRC Code: Double-Byte Check Code. RS-Company Code FSXCS-Ultrasonic Comprehensive Weather Station N01-485 Communication (Standard RTU Protocol) 3-Small Ultrasonic Integrated Shell Basic Parameter Maximum Power ConsumptionRS485 Output0.7W AccuracyWind Speed±0.5+2%FS Wind Direction±3 Degree Humidity±3%RH(60%RH,25℃) Temperature±0.5 DegreeC (25 DegreeC) RangeWind Speed0~40m/s, the initial wind speed is 0.5m/s. Wind Direction0~359 Degree Humidity0%RH~99%RH Temperature-40℃~+80℃ Long-Term StabilityTemperature≤0.1℃/y Humidity≤1%/y Response TimeWind Speed1S Wind Direction1S Temperature And Humidity≤1s Optical Rainfall ParametersAccuracy±5% Resolution0.1mm Maximum Instantaneous Rainfall24mm/min Rain Trail6cm Protection LevelIP54 Basic Communication Parameters Code8-Bit Binary Data Bit8-Bit Parity BitNot Support Stop Bit1 Digit Error CheckingCrc (Redundant Cyclic Code) Baud RateCan be set to 2400bit/s, 4800bit/s, 9600bit/s, the factory default is 4800bit/s. Slave Response Frame Structure Address CodeFunction CodeNumber Of Valid BytesData AreaData Area TwoData N AreaCheck Code Low ByteCheck Code High Byte 1bit1bit1bit2bit2bit2bit1bit1bit Host Query Frame Structure Address CodeFunction CodeRegister Start AddressRegister LengthCheck Code Low ByteCheck Code High Byte 1bit1bit2bit2bit1bit1bit Common Problems and Solutions: The possible reasons when the device cannot be connected to the PLC or computer are as follows: 1. The computer has multiple COM ports and the selected port is incorrect. 2. The device address is wrong, or there are devices with duplicate addresses (the factory default value is 1). 3. The baud rate, check method, data bit and stop bit are wrong. 4. The host polling interval and waiting response time are too short, and both need to be set above 200ms. 5. The 485 bus is disconnected, or the A and B wires are reversed. 6. If there are too many devices or too long wiring, power should be supplied nearby, add 485 boost, add 120Ω and measure the terminal resistance at the same time. 7. The USB to 485 driver is not installed or damaged. 8. The equipment is damaged. Package List： 1 x Weather Equipment Product 1 x Accessory Kit (3 x Screws,6 x Nut) 1 x Connection Line 1 x English Manual 1 x Accessory Board