SDI-12-NB - SDI-12 to NB-IoT Converter


Elevate your smart agriculture with Dragino's SDI-12-NB, a proficient SDI-12 to NB-IoT Converter. Ideal for connecting with a range of SDI sensors, this device efficiently captures environmental data for advanced farming analytics. With Telemetry2U integration, enjoy the convenience of instant alerts, custom payload decoders, and the ability to visualise and analyse historical data. Its long battery life and user-friendly design make it a reliable choice for modern agricultural solutions.

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

Manufacturer: Dragino
$115- +GST
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Enhancing Smart Agriculture


The Dragino SDI-12-NB is an innovative tool designed to bridge SDI-12 sensors with NB-IoT technology. It caters to the growing need for intelligent environmental monitoring in the agricultural sector, where precision and efficiency are paramount.

Reliable SDI-12 Protocol Support Utilizing the SDI-12 protocol, a standard in agricultural and weather station sensors, the SDI-12-NB ensures seamless communication with a wide array of SDI sensors. Its capability to support 12v output to power external sensors makes it a versatile solution for diverse agricultural applications.

Flexible Connectivity The device offers a range of uplink methods including MQTT, MQTTs, UDP, and TCP, accommodating different application requirements. This flexibility allows for reliable data transmission to various IoT servers, ensuring data is accessible wherever it's needed.

User-Friendly and Long-Lasting Designed with the user in mind, the SDI-12-NB includes BLE support for easy configuration and OTA updates. Its 8500mAh Li-SOCI2 battery provides long-term use for several years, reducing maintenance concerns and ensuring continuous operation.

Telemetry2U Integration for Advanced Data Management When integrated with Telemetry2U's IoT platform, the SDI-12-NB unlocks additional capabilities. Users benefit from instant alerts, the ability to create custom payload decoders and downlink commands, and tools for visualising and analysing historical data. This integration enhances decision-making and operational efficiency in smart agriculture.



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
  • Controllable 3.3v, 5v and 12v output to power external sensor
  • SDI-12 Protocol to connect to SDI-12 Sensor
  • 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
  • Uplink via MQTT, MQTTs, TCP, or UDP
  • Nano SIM card slot for NB-IoT SIM


  • Smart Agriculture
  • Smart Aquaculture
  • Custom Sensor Integration

Common DC Characteristics:

  • Supply Voltage: 2.5v ~ 3.6v
  • Support current: 5V 300mA, 12V 100mA
  • Operating Temperature: -40 ~ 85°C


Current Input (DC) Measuring :

  • Range: 0 ~ 20mA
  • Accuracy: 0.02mA
  • Resolution: 0.001mA


Voltage Input Measuring:

  • Range: 0 ~ 30v
  • Accuracy: 0.02v
  • Resolution: 0.001v


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:

  • SDI-12-NB_SDI-12 to NB-IoT Converter  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