CPL03-NB - NB-IoT Open/Close Dry Contact Sensor


Revolutionise your monitoring systems with the Dragino CPL03-NB, a robust NB-IoT Contact Sensor. Designed to detect and report dry contact statuses accurately, it's ideal for outdoor environments. Seamlessly integrated with Telemetry2U, it offers real-time alerts and status updates via email, SMS, or voice calls, enhancing security and operational efficiency. With its weatherproof design, long-lasting battery, and simple setup, including an optional built-in SIM card, it's a game-changer in IoT solutions for relay, alarm, and digital output monitoring.

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

Manufacturer: Dragino
$120- +GST
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Innovative Contact Monitoring for IoT Solutions


The Dragino CPL03-NB is a pioneering NB-IoT Contact Sensor, perfect for monitoring relay outputs, digital outputs, and alarm outputs. It expertly tracks dry contact status, open times, and counts, ensuring comprehensive monitoring.

Telemetry2U Integration for Enhanced Alerting: Integrated with Telemetry2U's platform, this sensor provides instant notifications through email, SMS, or voice calls. Its real-time status updates and alert audit reports are invaluable for maintaining high security and operational standards.

Robust Outdoor Design: Built for the outdoors, the CPL03-NB boasts a weatherproof enclosure, ensuring reliable performance in various environmental conditions. Its industrial-level battery can withstand low to high temperatures, making it versatile for different applications.

Flexible Data Reporting: Offering the flexibility to disable uplink for each open/close event, the CPL03-NB can count each event and upload data periodically. This feature, combined with an open alarm function for instant notices and a datalog feature for network downtime, makes it incredibly efficient.

Multiple Connectivity Options: Supporting MQTT, MQTTs, UDP, and TCP uplink methods, the CPL03-NB is compatible with various IoT servers. This flexibility caters to diverse application requirements, broadening its utility.

User-Friendly Configuration: With BLE configuration and OTA updates, the sensor is straightforward to use, allowing users to easily manage and update their devices.

Long-Term Battery Life: The 8500mAh Li-SOCI2 battery ensures that the CPL03-NB operates for several years, reducing maintenance and battery replacement frequency.

Effortless Setup: The optional built-in SIM card and default IoT server connection facilitate easy installation and immediate use, offering a hassle-free experience.



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 nameAttribute 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
  • Upload water flow volume
  • 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: 

Package contents

Package Includes: 

  • LMS01-NB NB-IoT Leaf Moisture 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