1. Introduction and Overview
The Halisense USB Soil Integrated Transmitter is a versatile instrument designed for comprehensive soil analysis. It accurately measures various critical soil parameters including temperature, humidity, electrical conductivity (EC), nitrogen (N), phosphorus (P), potassium (K), and pH levels. This device is ideal for both indoor and outdoor agricultural applications, providing essential data for optimizing plant growth and soil health. Its portable design and direct connectivity to mobile devices and computers make it a convenient tool for real-time soil monitoring.
2. Package Contents and Setup
2.1 Unboxing
Upon opening the carton packaging, ensure all components are present:
- USB Soil Integrated Transmitter unit with probes and attached cable.
- USB to Type-C adapter.
- USB to MicroUSB adapter.
- Instruction manual.
2.2 App Installation
To use the device, you need to install the companion application on your mobile phone, tablet, or computer. The application supports Android and Windows operating systems. Please note: iOS systems are NOT supported.
- Locate the QR code in the provided instruction manual to download the application.
- If the downloaded application is in Chinese, please contact customer service to obtain the English installation package.
2.3 Connecting the Device
The sensor is equipped with a USB cable and includes adapters for Type-C, MicroUSB, and standard USB connections, ensuring compatibility with various devices.
- Connect the sensor's USB cable to the appropriate adapter (Type-C for modern Android phones/tablets, MicroUSB for older Android devices, or standard USB for computers).
- Plug the adapter into your mobile device or computer.
- Launch the installed 'Soil Parameter Detector' application. The device should be recognized automatically.
3. Operating Instructions
The device offers two primary methods for soil measurement: Quick Test and Buried Measurement.
3.1 Quick Test Method
- Select a suitable measurement location, ensuring no rocks or hard objects are present that could damage the steel needles.
- Clear the surface soil to the desired measurement depth.
- Maintain the original tightness of the soil below the surface.
- Hold the sensor firmly and insert it vertically into the soil. Avoid shaking the sensor during insertion.
- It is recommended to take multiple measurements within a small area and average the results for higher accuracy.
3.2 Buried Measurement Method
- Dig a pit with a diameter greater than 20 cm vertically.
- Insert the sensor's steel needles horizontally into the pit wall at the desired depth.
- Backfill the pit, ensuring the soil is packed tightly and stably around the sensor.
- This method allows for continuous measurement and recording over extended periods (days, months, or longer).
3.3 Reading and Saving Data
Once the sensor is connected and inserted into the soil, the application will display real-time readings for temperature, moisture, EC, pH, N, P, and K. You can save these readings and review historical data within the app.
4. Maintenance
Proper maintenance ensures the longevity and accuracy of your soil sensor.
- Cleaning: After each use, gently wipe the stainless steel probes with a clean, damp cloth to remove any soil residue. Ensure the probes are dry before storage.
- Storage: Store the sensor in a dry, cool place away from direct sunlight and extreme temperatures.
- Probe Durability: The probes are made of 316 stainless steel, offering excellent resistance to rust, electrolysis, salt-alkali corrosion, and strong external impact. However, avoid unnecessary force or bending of the probes.
5. Troubleshooting
- Device not connecting/App not working: Ensure the app is installed correctly and your device (phone/tablet/PC) is running Android or Windows. iOS devices are not supported. Try reconnecting the sensor or restarting the app/device.
- Inaccurate readings: Make sure the probes are fully inserted into the soil and have good contact. Avoid inserting into overly dry, rocky, or compacted soil. Clean the probes thoroughly.
- App language issue (Chinese): If the app defaults to Chinese, contact Halisense customer service for the English version of the installation package.
6. Specifications
| Parameter | Specification |
|---|---|
| DC Power Supply (default) | DC 4.5-30V |
| Maximum Power Consumption | 0.5W (24VDC power supply) |
| Working Temperature | -20°C ~ +60°C |
| Core Chip Temperature Resistance | 85°C |
| Conductivity Parameters - Measuring Range | 0-20000us/cm |
| Conductivity Parameters - Resolution | 10us/cm |
| Conductivity Parameters - Accuracy | 0-10000us/cm is ±3%fs; within 10000-20000us/cm range is ±5%fs (brown, 60%rh, 25°C) |
| Soil Moisture Parameters - Measuring Range | 0-100% |
| Soil Moisture Parameters - Resolution | 0.1% |
| Soil Moisture Parameters - Accuracy | 0-50% within ±2%, @(brown foam, 30%, 25°C) ±3% within 50-100% @(brown foam, 60%, 25°C) |
| Soil Temperature Parameters - Measuring Range | -40-80°C |
| Soil Temperature Parameters - Resolution | 0.1°C |
| Soil Temperature Parameters - Accuracy | ±0.5°C (25°C) |
| Soil pH Parameters - Measuring Range | 3-9PH |
| Soil pH Parameters - Resolution | 0.1 |
| Conductivity Temperature Compensation | Built-in temperature compensation sensor, compensation range 0-50°C |
| Level of Protection | IP68 |
| Probe Material | Anti-corrosion special electrode |
| Sealing Material | Black flame retardant epoxy resin |
| Default Cable Length | 2m, cable length can be personalized as required |
| Overall Dimensions | 45*15*127mm |
| Output Signal | RS485 (Modbus protocol) |
| Stable Time | ≤5min |
7. User Tips
- App Compatibility: Remember that the device and its companion app are designed for Android and Windows systems only. It will not function with iOS devices like iPhones or iPads.
- English App Version: If your app installs in Chinese, don't hesitate to contact customer service for assistance in obtaining the English version.
- No Subscription: The app required for this device does not have a subscription fee.
8. Warranty and Support
For any technical assistance, warranty claims, or inquiries regarding your Halisense USB Soil Integrated Transmitter, please contact the Halisense Store directly. Refer to your purchase documentation for specific contact details.