1. Product Overview
The Comwintop Wireless Soil Parameters Data Logger is a versatile device designed for monitoring various soil conditions. It integrates a 7-in-1 sensor to measure soil moisture, temperature, electrical conductivity (EC), pH, and Nitrogen (N), Phosphorus (P), Potassium (K) levels. The data logger supports both WiFi and 4G communication options for data transmission to a cloud platform, allowing for remote observation and analysis.
The device features low power consumption, a built-in rechargeable battery, and supports direct solar charging. Its IP68 protection rating ensures durability for outdoor use.
2. Setup Instructions
Follow these steps to set up your Wireless Soil Parameters Data Logger:
- Open the Data Logger Casing: Carefully unscrew the four screws on the front panel of the data logger to access the internal components.
- Insert SIM Card (for 4G models only): Locate the SIM card slot on the circuit board. Insert a compatible SIM card into the slot. Ensure it is correctly oriented and securely seated.
- Connect to PC for Configuration: Use a Type-C USB cable to connect the data logger to your computer. This connection is necessary to use the configuration software for initial setup and parameter adjustments.
- Connect the Soil Sensor: Connect the soil sensor cable to the designated 'Sensor Input' port on the data logger. Ensure the connection is secure and the waterproof cap is tightened if applicable.
- Power On: The device can be powered by its internal battery or an external 12-24V DC power supply. If using solar charging, connect a solar panel directly to the device.
3. Operating Instructions
Once the device is physically set up, you can configure and operate it using the provided software and cloud service.
3.1. Configuration Tool Usage
The device comes with a configuration tool (software) that allows you to manage its settings:
- View Real-time Soil Parameters: Connect the device to a PC via Type-C cable and use the software to view live sensor data.
- Set Data Storage and Upload Time: Configure the interval at which the device stores sensor data (1 to 1440 minutes) and uploads logs (1 to 24 hours). The upload interval should be longer than the data storage interval.
- Set Server Address: Specify the IP address or domain of the server where the data will be sent. The device uses TCP/IP to connect to servers.
- Query Logs: Access and review all historical data logs stored on the device.
3.2. Data Logging and Transmission
The data logger has an internal 128MB memory for storing data. Data can be transmitted via WiFi or 4G:
- WiFi Version: Connects to a local Wi-Fi Access Point (AP) to send data to the cloud.
- 4G Version: Requires a SIM card. Uses 4G cellular network to send data to the cloud.
3.3. Cloud Service and Data Observation
Comwintop provides a free cloud service (CWT cloud) for data observation:
- Web Platform: Access real-time and historical data on a web page from any computer.
- Mobile App: Log in to the dedicated mobile application (available on APP store/Google Play) to observe data on your phone.
- Data Export: The cloud service supports exporting logs for further analysis.
4. Maintenance
Proper maintenance ensures the longevity and accurate operation of your data logger.
- IP68 Protection: The device is designed with IP68 protection, making it water and dust proof. It can operate outdoors in various weather conditions.
- Battery Management: The data logger includes an 8000mAh rechargeable lithium battery. With data sent once every 30 minutes, the battery life can extend up to 1 year.
- Solar Charging: The device has a built-in solar charging circuit, allowing direct connection to a solar panel without the need for an external charging controller. This provides a sustainable power solution for outdoor deployments.
5. Troubleshooting
If you encounter issues with your data logger, consider the following:
- No Data Transmission:
- For 4G models, ensure the SIM card is correctly inserted and has an active data plan.
- Check the configured server address in the PC software to ensure it is correct.
- Verify that the data upload interval is set appropriately and is longer than the data storage interval.
- Ensure the device has sufficient power (battery charged or external power connected).
- Inaccurate NPK Readings:
- Important Reminder: The NPK measurement method used by this sensor is a general rapid detection method and may have certain errors. It is primarily intended to show the trend of NPK levels rather than providing highly accurate quantitative measurements. Use NPK readings with caution for planting reference.
- Device Not Responding: Connect the device to a PC via the Type-C cable and use the configuration software to check its status and logs.
- Sensor Connection Issues: Ensure the sensor cable is securely connected to the 'Sensor Input' port.
6. Specifications
6.1. Soil Parameters Measuring
| Measuring Item | Parameters |
|---|---|
| Temperature |
|
| Humidity |
|
| Conductivity (EC) |
|
| PH |
|
| Nitrogen, Phosphorus, Potassium |
|
6.2. Basic Specifications
| Category | Detail | |
|---|---|---|
| System | CPU | STM32 |
| Working environment | -10°C to 55°C, 5%-95%RH (non-condensing) | |
| RTC | Update RTC automatically by NTP or manually | |
| Memory | 128MB | |
| USB | Configuration port, connect PC, provide config software | |
| Power | External supply | 12-24V DC |
| Consumption | 850 uA (standby), 160 mA (data upload) | |
| Inside battery | 8000mAh rechargeable lithium battery | |
| Charging | Built-in solar charging circuit, directly connect solar panel for charging | |
| Options of 4G frequency | Option1-EU / Option2-AU / Option3-A / Option4-J | |
| LTE-FDD | B1/3/5/7/8/20/28 (EU), B1/2/3/4/5/7/8/28/66 (AU), B2/4/12 (A), B1/B3/B8/B18/B19/B26 (J) | |
| LTE-TDD | B38/40/41 (EU), B40 (AU), B41 (J) | |
| WCDMA | B1/5/8 (EU), B1/2/4/5/8 (AU), B2/4/5 (A), B1/B6/B8/B19 (J) | |
| GSM/EDGE | B3/8 (EU), B2/3/5/8 (AU) | |
| 4G working Area | Europe, Middle East, Africa, Korea, Thailand, Southeast Asia (EU); Australia, New Zealand, Latin America, Taiwan (AU); The United States, Canada (A); Japan (J) | |
| 4G Communication | Protocol | TCP/IP connect servers, CwtIO |
| Upload Interval | 1 minute to 24 hours (settable) | |
| Physical | Data logger dimensions | 146 × 90 × 50 mm |
| Soil Sensor dimensions | 130 × 45 × 15 mm | |
| Weight | 440g | |
| Installation | Screw fixing or Portable | |
7. Warranty and Support
For any technical assistance, warranty claims, or support inquiries, please contact Comwintop customer service. Refer to the official product page or your purchase documentation for specific contact details.
A detailed user manual in PDF format is available for download. This document provides additional in-depth information regarding the device's features and advanced configurations. View User Manual (PDF)
8. User Tips
- NPK Readings: Remember that NPK measurements are based on a rapid detection method and are best used for observing trends rather than precise quantitative analysis.
- Optimal Battery Life: To maximize battery life, especially when using solar charging, set the data upload interval to 30 minutes or longer.
- Secure Connections: Always ensure all cable connections, especially the sensor and power cables, are secure and waterproofed for reliable outdoor performance.
- Cloud Monitoring: Regularly check the CWT cloud platform (web or app) to monitor your soil data and ensure continuous operation.