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Soil pH Sensor
The ZenoSmart LoRaWAN Soil pH Sensor precisely measures the pH level and temperature of soil in agricultural fields and transmits data to cloud platforms over the LoRaWAN network. Thanks to its IP68 certified waterproof probe, it is suitable for long-term underground use. The ZenoSmart Soil pH Sensor improves farming efficiency by tracking soil pH in fields, greenhouses and gardens. It runs on a 3.6V battery and sends data to a LoRaWAN Gateway every 15 minutes. You can change this interval easily through the IoT platform. With the ZenoSmart online platform, you can monitor data remotely and review daily, weekly or monthly reports. The sensor helps you maintain the right pH balance. It also reduces fertiliser waste, supports healthy plant growth and boosts crop yield. You can build low-cost monitoring systems with LTE, Wi-Fi or Helium networks. These options expand coverage quickly and support large agricultural areas. The sensor helps you use water and fertiliser more efficiently and supports sustainable farming practices. The ZenoSmart Soil pH Sensor delivers accurate measurements and offers smart IoT control features. It gives farmers a reliable and effective tool for modern agriculture.
| Feature | Details |
|---|---|
| Network Protocol | LoRaWAN 1.0.3 Class A (Low-power, bidirectional communication) |
| Power Consumption | Ultra low |
| Monitoring Capabilities | Measures soil Nitrogen (N), Phosphorus (P), and Potassium (K) levels using TDR method |
| Supported Frequency Bands | EU433, US915, EU868, AS923, AU915 |
| Configuration & Setup | Optional pre-configuration available |
| Data Transmission | Periodic cloud data upload (Uplink); Downlink communication from gateway to module |
| Protection | IP66 waterproof enclosure / IP68 soil pH probe |
| Battery Options | 4000mAh, 8500mAh, or 19,500mAh Li-SOCl₂ battery (Estimated lifespan: up to 10 years) |
| Soil pH Measurement | • Range: 3 ~ 10 pH • Resolution: 0.01 pH • Accuracy: ±2% (0 ~ 50 °C; accuracy decreases below 0 °C due to freezing) • Temperature Compensation: 0 ~ 50 °C • Protection: IP68 • Cable Length: 3.5 m |
| Soil Temperature Measurement | • Range: -40 °C ~ +85 °C • Resolution: 0.1 °C • Accuracy: <±0.5 °C (-10 °C ~ +40 °C), <±0.8 °C (other ranges) • Protection: IP68 • Cable Length: 3.5 m |
| Soil pH Sensor Technical Documentation Manual | Download |
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What data does the sensor measure?
Answer:
The ZenoSmart LoRaWAN Soil pH Sensor measures soil pH and temperature with high accuracy. It can also monitor Nitrogen (N), Phosphorus (P), and Potassium (K) levels using the TDR method. These data are used to understand plant nutrient balance and develop appropriate fertilization strategies.
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How does the sensor work and transmit data?
Answer:
The sensor operates with a built-in Li-SOCl₂ battery and transmits the measured data wirelessly to the cloud platform via the LoRaWAN network. The default data transmission interval is 15 minutes, but it can be adjusted according to user needs. Additionally, the device can establish bidirectional communication with the gateway (uplink & downlink).
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Is the device resistant to outdoor conditions?
Answer:
Yes. The sensor body has an IP66 waterproof enclosure, and the soil probe has an IP68 protection rating. This ensures the sensor is durable for long-term underground use and harsh environmental conditions. It also requires minimal maintenance and starts collecting data automatically after installation.