1、EASY TO INSTALL: Adopt high accuracy temperature and humidity measurement unit, long term stability, small size, wall mounted, rail mounted 2、COMMUNICATION: Using dedicated 485 circuit, standard RTU communication protocol, communication address and baud rate can be set 3、BASIC SPECIFICATIONS: 10~30V wide voltage range power supply, the output signal type is RS485, the longest communication is 2000 meters 4、PROTECTION GRADE: Industrial wall mounted high protection grade housing, protection grade IP65, rain and snow protection and good air permeability 5、ADVANCED CHIP: The circuit adopts industrial grade microprocessor chip and imported temperature and humidity sensor to ensure excellent reliability, and interchangeability 2 x Screw2 x Expansion Tube1 x Temperature Humidity Sensor1 x User Manual Item Type: Temperature Humidity TransmitterMaterial: ABSSize: Approx. 147 x 88 x 41mm / 5.80 x 3.46 x 1.61inPower Supply Wiring: Wide Voltage 10~30V DC Power InputDC Power Supply (Default): DC 10-30VMaximum Power Consumption: 0.4WA Accurate Humidity: ±2%RH (60%RH, 25℃)Temperature: ± 0.4°C (25℃)B Accuracy (Default) Humidity: ±3%RH (60%RH, 25℃)Temperature: ± 0.5℃ (25℃)Transmitter Circuit Operating Temperature and Humidity: -20℃~+60℃, 0%RH~95%RH (Non Condensing)Probe Working Temperature: -40℃~+120℃ Default: -40℃~+80℃Probe Working Humidity: 0%RH-100%RHCommunication Protocol: RTU ProtocolOutput Signal: 485 SignalTemperature Display Resolution: 0.1℃Humidity Display Resolution: 0.1%RHTemperature and Humidity Flush Time: 1sHole Size: Approx. 70mm / 2.76inLong Term Stability Humidity: ≤1%RH/yTemperature: ≤ 0.1℃/yResponse Time Humidity: ≤8s (1m/s Wind Speed)Temperature: ≤25s (1m/s Wind Speed)Parameter Setting: Set by SoftwareModel:  RS- Codes Company Codes WS-  Temperature Humidity Transmitter, Sensor N01- 485 Communication (RTU Protocol) 2D  Industrial Wall Mount Specific Wiring:  Circuit Identification Description Power Supply VCC Power Supply Positive (10~30V DC) GND Power Supply Negative Communications 485A 485-A 485B  485-B Wiring Instructions: Power and 485 SignalsWide Voltage Power Input 10~30V Can Be Used. When Wiring The 485 signal line, pay attention that the 2 lines A and B cannot be reversed, and the addresses of multiple devices on the bus cannot be conflicted. (Note: The device does not provide a communication line by default)Basic Communication Parameters: Encoding: 8bit BinaryData Bits: 8 BitsParity Bit: NoneStop Bit: 1 BitError Check: CRC (Redundant Cyclic Codes)Baud Rate: 2400bit/s, 4800bit/s, 9600 bit/s can be set, the factory default is 4800bit/sCommon Problems and Solutions: The device cannot be connected to the PLC or computerPossible Reason: 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 is all 1) 3. Baud rate, check mode, data bit, stop bit error 4. The 485 main wire is disconnected, or the A and B lines are reversed 5. If the number of devices is too large or the wiring is too long, power supply should be provided nearby, 485 boost should be added, and 120Ω terminal resistance should be added at the same time 6. The USB to 485 driver is not installed or damaged 7. The equipment is damagedWeight: Approx. 157g / 5.54oz