Generic RS485 Rain, Premium Aluminum Alloy Rainfall Sensor with Drip Sensing Design, Optical Counting Rainfall Amount Sensor Module for Smart Agricultural Rainfall Monitoring System

Spec: Item Type: Rainfall Sensor Material: Aluminum alloy Weight: Approx. 524.00g/18.48oz Output : RS485 Power Supply Voltage: 9 to 30V Sensor Cable Length: Approx. 2.5m/98.4in (±5cm) Product Size: Approx. 85x78mm/3.3x3.1in Hole Spacing: Approx. 72mm/2.8in Rainfall Mouth Diameter: Approx. 60mm/2.4in Measurement Range: 0 to 4mm/min (measurements may become inaccurate beyond this rainfall ) Resolution: 0.03mm Accuracy: ±4% (static test indoors, rainfall at 2mm/min) Protective Level: IP65 Power Consumption: ≤0.24W (12V DC, current less than 20mA) Operating Temperature: 0 to 65℃ Operating Damp: 0 to 99%RH (non condensing) Widely Used in: Smart agricultural, meteorological environmental guard, smart irrigation, ship navigation, automatic weather stations, automatic door and window, geological disasters, etc. Wiring: Red Cable: Power Black Cable: A+ Yellow Cable: B- : Power negative CRC Check Steps: 1. Initialize a 16-bit register to hexadecimal , referred to as the CRC register. 2. XOR the first 8 bits of data with the low bits of the CRC register, and store the result back in the CRC register. 3. Right shift the content of the register by one bit (towards the lower order bits), fill the highest bit with 0, and check the lowest bit. 4. If the lowest bit is 0: repeat step 3 (shift again); if the lowest bit is 1: XOR the CRC register with the polynomial A001 (1010 0000 0000 0001). 1. Incorrect displayed value on the instrument during RS485 output. Possible causes include wiring issues or communicating port faults leading to incorrect data retrieval. Check for proper and secure wiring connections, ensure the communicating port is not in use, and verify the port settings. 2. Instrument display value clearly deviates from actual conditions. the

• Aluminum Alloy Construction: Made of premium aluminum alloy material, the rainfall sensor is sturdy and long lasting, capable of operating normally in high temperature and damp environments.
• Precise Raindrop Measurement: Utilizes a drip sensing design principle with a special internal structure for accurate control of raindrop size, combined with optical sensing principles for raindrop counting to measure rainfall volume.
• RS485 Output : The rainfall monitoring operates on 9 to 30V power supply voltage, providing precise measurements and high reliability for data transmission.
• Compact and Lightweight: With no moving parts, the rainfall amount sensor module is compact and portable, easy to install, less susceptible to wear, and simple to maintain.
• Wide Application Range: Widely used in industries and fields such as smart agricultural, meteorology and environmental guard, smart irrigation, marine navigation, automated weather stations, automatic door and window, and geological disaster monitoring.