RS485 Photosynthetic Sensor Transmitter High Accuracy 400 to 700nm IP67 Photosynthetic Active Radiation Sensor for Agricultural Equipment DC 5V Item Type: Photosynthetic Sensor Transmitter Material: Aluminum Alloy Weight: Approx. 292g / 10.3oz Product Size: Approx. 65x31mm / 2.6x1.2in Mounting Hole Distance: 57mm / 2.2in Power Supply: DC 5V Output Form: RS485 (for Modbus) Spectrum Range: 400 to 700nm Range: 0 to 1500W/m2 (Or 0 to 5000umolxm-2xs-1) Resolution: 1W/m2 (Or umolxm-2xs-1) Response Time: ≤5 ms (95%) Non Linearity: ±4% Directional Response (Corrected To Within 80° Of The Zenith Angle): ±10% Temperature Response (-20°C to 60°C): ±5% Annual Stability: ±3% Spectrum Response Bandwidth: (400±10)nm to (700±10)nm Spectrum Selectivity Error: ±5% Response Outside The Specified Bandwidth: ≤ 10% Protective Grade: IP67 Operating Temperature: -40 to 80°C Relative Humidity: 0 to 100%RH Power Consumption: ≤100mW at 5V Troubleshooting: The meter display value is incorrect when outputting. This may be due to wiring problems or communicating serial port failure, resulting in failure to obtain the correct data. Please check whether the wiring is correct and firm, whether the serial port is occupied, and whether the serial port setting is correctWiring: Output Signal: RS485 Red Wire: Power Positive Black Wire: A+ Yellow Wire: B- Green Wire: Power Negative