LSPH01: IOT Soil pH Sensor

The Dragino LSPH01 is a LoRaWAN Soil pH and Temperature Sensor. When used with Telemetry2U, it quickly enables a level of smart farming through the Internet of Things (IoT). pH is critical for plant growth, as it influences the availability of essential nutrients and their chemical reactions. The Silver Chloride (Ag-Cl) reference electrode and the pure metal pH sensitive electrode offer high accuracy and stability over the range, with temperature compensation. It can be buried in the soil for long term use, with the battery lasting up to 5 years.

SKU: T2U-LSPH01-AU915 Category: Tag:

The LSPH01 is a long range LoRaWAN node that provides spread spectrum communication and high interference immunity whilst minimising power consumption. Its IP66 waterproof design makes it suitable for outdoor use. Its powered by a 8500mA Li/SOCl2 non-rechargeable battery and due to its low power consumption, users can expect years of operation with a moderate logging rate. The LoRa technology used for transmission allows you to send you pH data extremely long distances, and this is boosted further with the external antenna.  Ranges for of more than 10km line-of-sight are not uncommon.

The operating parameters and many other settings on the LSPH01 can be modified via AT commands on the serial port interface through a terminal program like RealTerm, but an FT232RL USB-TTL converter is required for this task (not supplied).  The communications port can also be used to upload new firmware via the built-in bootloader.  When purchased with a T2U node licence, there is generally no need to worry about the technical stuff, as your device comes preconfigured for the Telemetry2U servers and loaded with the latest firmware, ready to go.  Once its connected, you’ll be able to send commands and change the settings on your device from the T2U interface, so there is no need to connect to via the serial port.


Telemetry2U provide a plug-and-play solution to monitoring soil parameters by coupling affordable yet robust hardware with a sophisticated IoT platform. It’s now possible to see soil nutrient (NPK) and pH levels in real-time on a dashboard from any Smartphone or PC connected to the internet. Historical data can be analysed on charts, tables, and reports – enabling farmers to see what effect any soil treatments have had and compare actual scientific data against real world results.




Full Specifications

  • Ultra low power consumption
  • LoRaWAN 1.0.3 Class A
  • Monitor Soil pH
  • Monitor Soil Temperature
  • User Calibration
  • AT Commands to change parameters
  • Uplink on periodically
  • Downlink to change configure
  • IP66 Waterproof Enclosure
  • IP68 Sensor
  • 8500mAh Battery for long term use
  • Smart farming
  • Home gardens
  • Research applications
  • Hydroponics
Package contents
  • 1 x LPH01 v2 module
  • 1 x External RF antenna
  • 1 x Ph/Temperature probe – fitted
Package contents
  • Device size: 130 x 50x 45mm
  • Device weight: 150g
  • Package size / pcs : 140 x 80 x 50mm
  • Package weight / pcs : 180g


Servicing, Calibration and Support

Imbros’ local engineering department can service, repair and calibrate your instrument without expensive shipping costs or wait times.


More Information from Telemetry2U

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