2-Pack Rain Water Sensor Module FR-04, 3.3V5V Rain Detection Sensor for Arduino Smart Irrigation, DIY Weather Monitoring

The 2-Pack Rain Water Sensor Module FR-04 is designed for Arduino users interested in smart irrigation and DIY weather monitoring projects. Customer reception has been mixed, highlighting both positive and negative experiences with the product. On the positive side, users appreciate that the product matches its advertising and that they would Consider purchasing from this vendor again. The functionality of the sensors is acknowledged, as they serve their purpose of detecting rain effectively. However, there have been significant concerns regarding usability and durability. Some customers reported issues with the sensors becoming ineffective after rain, as water can interfere with their performance, leading to continuous detection of moisture even after the rain has stopped. Moreover, a common criticism is the absence of documentation or instructional material, which has left users frustrated due to the lack of guidance regarding the use of the terminals on the board. This lack of clarity means many users are uncertain about how to connect and operate the sensors properly. In summary, while the 2-Pack Rain Water Sensor Module FR-04 is generally well-regarded for its affordability and effectiveness in detecting rain, the absence of clear instructions and potential durability issues diminish the overall customer experience. **