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Shandong Fengtu IoT Technology Co., Ltd

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Manual for Piezoelectric Rain Sensor
Date: 2025-09-24Read: 1

1、 Product Overview

This piezoelectric rain sensor uses PVDF piezoelectric film as the rain sensing device, and uses an embedded AI neural network to distinguish raindrop signals, avoiding false triggering caused by interference such as gravel, dust, and vibration.

Widely used in meteorological environment monitoring, hydrological and water conservancy comprehensive monitoring stations, traffic and road monitoring, agriculture and forestry, wind power generation and other relevant departments to remotely measure precipitation, precipitation intensity, and precipitation start and end time. Used for flood control, water supply scheduling, hydropower station and reservoir water management purposes, hydrological automatic monitoring and reporting system, automatic field monitoring and reporting station, etc.

2、 Functional Features

1. Integrated design, exquisite appearance

2. No mechanical components, no exposed parts, can filter similar signals introduced by environmental factors such as leaves, dust, insects, etc

3. High measurement accuracy, wide range, good stability, low power consumption, strong resistance to external interference

4. Able to work 24/7, unaffected by weather changes, with precise monitoring of rainfall duration down to seconds

5. Maintenance free, the raindrop contact surface is designed with an arc-shaped structure, which does not store rainwater,

6. Equipped with automatic horizontal calibration function after installation, no on-site calibration required

7. Compact size, easy to carry, disassemble and install

3、 Technical parameters

measurement range 0-4mm/min
measurement accuracy ≤±4%
resolution 0.01mm
sampling frequency <1S
communication interface RS485
communication protocol MODBUS
power supply DC12V
power consumption 0.12W
Operating Temperature -40~85℃
Operating Humidity 0~100%RH

4、 Precautions

1. There is no obstruction within a 1-meter radius around the sensor to avoid the impact of water droplets splashing

2. The installation position of the sensor should avoid strong mechanical vibration sources

3. The area above the sensor installation should be open, and raindrops should directly fall onto the sensor, avoiding secondary dripping and continuous water flow impact