SENS-SOIL-NPK-V1 sends measurements used to follow nitrogen, phosphorus, and potassium trends over LTE-M or NB-IoT. Compare changes with soil tests, crop needs, and field history before reviewing a nutrient-plan change.
| Parameter | Specification |
|---|---|
| Measured channels | Trend readings for nitrogen (N), phosphorus (P), and potassium (K) |
| Probe configuration | Factory-connected external RS-485 probe; documented profile: DFRobot SEN0605 |
| Cellular connectivity | LTE-M (Cat-M1) and NB-IoT (Cat-NB1/NB2); supported bands depend on region and operator |
| Positioning | Optional GPS position metadata, depending on the configured device profile. |
| Operating temperature | −20 to +85 °C |
| Dimensions and mass | 250 × 30 × 30 mm; 183 g |
| Enclosure protection | Protection depends on the enclosure variant and installation; confirm the validated rating for the supplied device |
| Local service | Hall sensor service trigger; BLE service window is described in the operating instruction |
| Firmware | Over-the-air (OTA) updates supported |
| Data handling | Scheduled measurements; readings are buffered locally when cellular service is unavailable and sent after connectivity returns |
Temperature, dimensions and mass are nominal values listed in the operating instruction; confirm them for the supplied variant. NPK readings are intended for trend monitoring, not as a replacement for representative soil sampling and laboratory analysis. Confirm the supplied probe, power arrangement, enclosure protection, and installation requirements with Sensorius.
Use consistent installation and sampling practices to compare changes across time or representative field zones. The Sensorius Platform can show those changes alongside crop and field information, weather, the crop timeline and work records.
NPK device readings are one source of evidence. Fertilization decisions may also require representative sampling, laboratory analysis, crop requirements, local regulation, product labels, weather, field history, and qualified agronomic review.
Download the operating instructions for this device as a PDF.
Download operating instructions (PDF)Before deployment, agree on sensor placement, depth, sampling windows, soil variability, maintenance, calibration and validation, connectivity, and how the team will compare readings across time or locations.