SPH01-NB - NB-IoT Soil pH Sensor


Elevate your agricultural insights with the Dragino SPH01-NB, a state-of-the-art NB-IoT Soil pH Sensor. Engineered to measure soil pH and temperature accurately, it's a key tool in assessing soil health. Its seamless integration with Telemetry2U's IoT platform provides real-time soil acidity or alkalinity analysis. Durable, waterproof, and designed for long-term underground use, this sensor simplifies precision farming with its long battery life and easy setup, including an optional built-in SIM card.

New customers will enjoy 60-Day's FREE access on Telemetry2Us' IoT Platform. Read more here...

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Manufacturer: Dragino
$240- +GST
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Precision pH Monitoring for Enhanced Crop Health

The Dragino SPH01-NB is an innovative soil pH sensor, revolutionising agricultural IoT with its ability to precisely measure soil pH and temperature. This sensor is vital for understanding soil conditions, ensuring optimal plant growth and soil management.

Seamless Telemetry2U Integration: Fully compatible with Telemetry2U's IoT platform, the SPH01-NB offers effortless data transmission, providing farmers with instant soil acidity and alkalinity levels. This integration enables smarter, data-driven agricultural practices, crucial for modern farming.

Robust and Reliable Sensor Design: The SPH01-NB's probe, comprising a Solid AgCl reference electrode and a pure metal pH sensitive electrode, guarantees high accuracy and stable readings. Its IP68 waterproof rating ensures durability, even when buried in soil for extended periods.

Flexible Connectivity for Various Applications: Supporting multiple uplink methods like MQTT, MQTTs, UDP, and TCP, the SPH01-NB can easily connect to various IoT servers. This versatility makes it suitable for a wide range of agricultural applications.

User-Friendly Operation: With BLE configuration and OTA updates, the SPH01-NB is designed for ease of use. These features allow for simple device management and maintenance, making it accessible to all users.

Long-Term Battery Life: Powered by an 8500mAh Li-SOCI2 battery, the SPH01-NB is built for long-term usage, significantly reducing the frequency of maintenance and battery replacement.

Simple and Efficient Setup: The optional built-in SIM card and default IoT server connection make the SPH01-NB a plug-and-play device, offering hassle-free installation and immediate operational readiness.



Choose the 12-Month Subscription with Telstra SIM



When you select one of the "12-month IoT Platform Subscriptions", we'll handle all necessary configurations for seamless integration into Telemetry2U's IoT platform. If you also ordered a Telstra 500KB NB-IoT SIM card with your device, That'll also be installed and configured prior to shipment. The SIM card is locked to the device and the data capped at 500KB, so there is no chance of any suprise charges. 

IoT Platform Features

Check out a Live Demo of the Telemetry2U IoT Platform in Action

See how easy it is to add your own Dragino NB-IoT Devices to Telemetry2U

Attribute name Attribute value


  • NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
  • Ultra-low power consumption
  • Monitor soil pH with temperature compensation.
  • Monitor soil temperature
  • Support pH calibration by end user
  • Multiply Sampling and one uplink
  • Support Bluetooth v5.1 remote configure and update firmware
  • Uplink on periodically
  • Downlink to change configure
  • 8500mAh Battery for long term use
  • Nano SIM card slot for NB-IoT SIM 


  • Smart Agriculture 
  • Smart farming
  • Crop health
  • Greenhouse

Common DC Characteristics:

  • Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~ 3.6v
  • Operating Temperature: -40 ~ 85°C


Soil pH:

  • Range: 3 ~ 10 pH 
  • Resolution: 0.01 pH
  • Accuracy: ±2% under (0~50 ℃, Accuracy will poor under 0 due to frozen)
  • Temperature Compensation Range: 0 ~ 50℃
  • IP68 Protection
  • Length: 3.5 meters


Soil Temperature:

  • Range -40℃~85℃
  • Resolution: 0.1℃
  • Accuracy: <±0.5℃(-10℃~40℃),<±0.8℃ (others)
  • IP68 Protection
  • Length: 3.5 meters


NB-IoT Spec: 

NB-IoT Module: BC660K-GL  

Support Bands:  

  • B1 @H-FDD: 2100MHz
  • B2 @H-FDD: 1900MHz
  • B3 @H-FDD: 1800MHz
  • B4 @H-FDD: 2100MHz
  • B5 @H-FDD: 860MHz
  • B8 @H-FDD: 900MHz
  • B12 @H-FDD: 720MHz
  • B13 @H-FDD: 740MHz
  • B17 @H-FDD: 730MHz
  • B18 @H-FDD: 870MHz
  • B19 @H-FDD: 870MHz
  • B20 @H-FDD: 790MHz
  • B25 @H-FDD: 1900MHz
  • B28 @H-FDD: 750MHz
  • B66 @H-FDD: 2000MHz
  • B70 @H-FDD: 2000MHz
  • B85 @H-FDD: 700MHz 



  • Li/SOCI2 un-chargeable battery
  • Capacity: 8500mAh
  • Self-Discharge: <1% / Year @ 25°C
  • Max continuously current: 130mA
  • Max boost current: 2A, 1 second 


Power Consumption:  

  • STOP Mode: 10uA @ 3.3v
  • Max transmit power:   350mA@3.3v 
Package contents

Package Includes: 

  • SPH01-NB NB-IoT Soil pH Sensor x 1 
  • External antenna x 1 


Dimension and weight:

  • Device Size: 195 * 125 * 55 mm
  • Device Weight: 420 g

DataSheet, Document Base

User Manual -- Online Latest

Shared Folder for all Dragino Products