DS03A-NB - NB-IoT Open/Close Door Sensor


Enhance security with the Dragino DS03A-NB, a robust NB-IoT Door Sensor ideal for home and business use. This sensor efficiently tracks door open/close statuses, durations, and counts, and communicates this data via the NB-IoT network. Integrated with Telemetry2U, it offers instant alerts, a real-time dashboard, and keeps users informed about device status. Its weatherproof design, long battery life, and user-friendly features, including optional event-based uplink control, make it a reliable asset protection solution.

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

Manufacturer: Dragino
$175- +GST
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Advanced Door Monitoring for Enhanced Security

The Dragino DS03A-NB is an innovative NB-IoT Door Sensor, specifically designed for reliable monitoring of door statuses in homes and businesses. It's an essential tool for asset protection and security.

Seamless Integration with Telemetry2U: With Telemetry2U, the DS03A-NB not only monitors doors but also provides instant notifications via email, SMS, and voice calls. The real-time dashboard feature allows for continuous surveillance, ensuring a high level of security and peace of mind.

Reliable Performance in Various Environments: Suitable for both indoor and outdoor use, the DS03A-NB's weatherproof enclosure and industrial-level battery make it versatile and reliable in different temperature ranges.

Customisable Data Reporting: The device sends updates every 2 hours and reports each door event. Users can opt to disable the uplink for individual events, with the DS03A-NB counting each occurrence for periodic updates, offering flexibility in data management.

Data Logging and Open Alarm Features: With its Datalog feature, the DS03A-NB can store data when the network is unavailable, uploading it once connectivity is restored. The Open Alarm feature alerts users if a door remains open beyond a set duration, enhancing security measures.

Versatile Connectivity Options: Supporting diverse uplink methods like MQTT, MQTTs, UDP, and TCP, the DS03A-NB is adaptable to various IoT servers, meeting different application requirements.

User-Friendly Operation: Designed with BLE configuration and OTA updates, the sensor ensures ease of use. This feature is crucial for efficient device management and user convenience.

Long-Term, Reliable Battery Life: Powered by an 8500mAh Li-SOCI2 battery, the DS03A-NB is built for extended use, minimizing maintenance and ensuring consistent operation.



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
  • Door Open/Close detect
  • Door open/close statistics
  • Datalog Feature
  • Open Alarm Feature
  • 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 


  • Wireless Alarm and Security Systems
  • Home and Building Automation
  • Industrial Monitoring and Control 

Common DC Characteristics:

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


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:

  • DS03A-NB NB-IoT Door sensor x 1
  • External antenna x 1

DataSheet, Document Base

User Manual -- Online Latest

Shared Folder for all Dragino Products