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RS485-LB/LS

WaterProof RS485/UART to LoRaWAN Converter

The Dragino RS485-LB/LS is a RS485 / UART to LoRaWAN Converter for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-LB/LS converter, and configure RS485-LB/LS to periodically read sensor data and upload via LoRaWAN network to IoT server. RS485-LB/LS can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-LB/LS provides a 3.3v output and a 5v output to power external sensors. Both output voltages are controllable to minimize the total system power consumption. RS485-LB/LS is IP67 waterproof and powered by 8500mAh Li-SOCI2 battery or solar powered + Li-ion battery, it is designed for long term use for several years.

Features

  • Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
  • LoRaWAN 1.0.3 Class A
  • Ultra-low power consumption
  • Support multiply RS485 devices by flexible rules
  • Support Modbus protocol
  • Support Interrupt uplink
  • Supports connecting a UART sensors with 3.3V or 5V
  • Support Bluetooth v5.1 and LoRaWAN remote 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
RS485-LB/LS LoRaWAN architecture diagram

Product inquiry

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