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SN50v3-NB

NB-IoT Sensor Node

SN50v3-NB is a Long Range NB-IoT Sensor Node. It is designed to facilitate developers to quickly deploy industrial level NB-IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere. SN50v3-NB wireless part is based on NB model allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on. SN50v3-NB uses STM32l0x chip from ST, STML0x is the ultra-low-power STM32L072xxxx microcontrollers incorporate the connectivity power of the universal serial bus (USB 2.0 crystal-less) with the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (192 Kbytes of Flash program memory, 6 Kbytes of data EEPROM and 20 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.

Features

  • 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
  • Open-source hardware / software
  • Multiply Sampling and one uplink
  • Support Bluetooth v5.1 remote configure and update firmware
  • Uplink via COAP, MQTT, MQTTs, TCP, or UDP
  • Uplink on periodically
  • Downlink to change configure

Multi-Band Support

Thermal Anemometer

Range: 0~5/10/30m/s

1000mAh Rechargeable Battery

External DC power adapter

wireless OTA update firmware

Application guide

Choose the airflow range by deployment scenario

Cold Storage & Display Cases
0–5 m/s range

Cold Storage & Display Cases

For supermarket chillers, refrigerated display cases, cold storage deadzone detection, VAV terminals, and clean rooms.

Cold chainClean roomLow airflow
HVAC Ducts & AHU Verification
0–10 m/s range

HVAC Ducts & AHU Verification

For HVAC supply or extract ducts, filter pressure-drop monitoring, and air handling unit performance checks.

HVAC ductsAHUFilter monitoring
Industrial Ventilation & Fan Outlets
0–30 m/s range

Industrial Ventilation & Fan Outlets

For main duct airflow, fan outlets, compressed air systems, and industrial ventilation monitoring.

Fan outletsMain ductsIndustrial

How it works

Remote airflow monitoring via LoRaWAN

Deploy AirFlow-LN at critical airflow points, transmit measurements through a LoRaWAN gateway, and use platform data to detect weak airflow, filter problems, or abnormal ventilation conditions earlier.

  1. AirFlow-LN measures airflow in ducts, refrigeration, or ventilation points.
  2. LoRaWAN gateway receives data from distributed sensors across the site.
  3. Cloud platform visualizes trends and helps trigger maintenance decisions.
Remote monitoring deployment scene
SN50v3-NB LoRaWAN architecture diagram

Product inquiry

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