PS-LS-D04 LoRaWAN Differential Air Pressure Sensor

The Dragino PS-LS-D04 is a LoRaWAN differential air pressure sensor designed to measure the pressure difference between two air pressure points. Instead of absolute pressure, it focuses on detecting variations across components such as valves, filters, and ducts. The sensor wirelessly transmits differential pressure data to an IoT server via LoRaWAN, making it ideal for industrial and building monitoring applications. It is solar-powered with a Li-ion battery, ensuring long-term, maintenance-free operation.

Key Specifications

• Protocol: LoRaWAN v1.0.3 Class A

• Pressure Type: Differential air pressure (two pressure inputs)

• Pressure Range: D04 range (model-specific differential pressure range)

• MCU: 48 MHz ARM, 256 KB Flash, 64 KB RAM

• Power Supply: Solar panel + 3000mAh Li-ion battery (PS-LS-D)

• Operating Temperature: –40 °C to +85 °C

• RF Output Power: Up to +22 dBm

• RX Sensitivity: Down to –139 dBm

• Configuration: Bluetooth & LoRaWAN downlink

• Firmware: Wireless OTA update

• Power Consumption:

  • Sleep: 5 µA @ 3.3 V

  • TX: 125 mA @ 20 dBm

Applications

Indoor air control systems, HVAC filter clogging detection, valve blockage detection, industrial airflow monitoring, and pressure monitoring in heating and ventilation systems.

USER MANUAL:

PS-LS-D_User_Manual

DATA SHEET:

PS-LS-D_Datasheet

FIRMWARE:

PS-LS_Firmware