Dragino LoRaWAN IAQ Indoor Air Quality Sensor (TVOC, eCO2, Temp, and Humidity)

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The Dragino LAQ4 is a LoRaWAN Indoor Air Quality Sensor for Internet of Things solutions and is designed to measure surrounding environment parameters, including TVOC (Total Volatile Organic Compound), eCO2 (equivalent CO2), temperature, and relative air humidity, uploading the data to an IoT server via LoRaWAN wireless protocol.

IAQ (Indoor Air Quality) is a very important factor for indoor activity and human life. VOC (Volatile Organic Compound) gas emissions from certain solids and liquids are the main source for poor indoor air quality. LAQ4 helps you monitor IAQ and, like other TVOC sensors, LAQ4 can be calibrated for more accurate measurements of TVOC and eCO2.


  • LoRaWAN v1.0.3 Class A
  • Ultra-low power consumption
  • Monitor TVOC, eCO2, temperature, and relative humidity
  • Temperature and humidity alarm
  • Bands:
    • CN470/EU433/KR920/US915
    • EU868/AS923/AU915/IN865
  • AT commands to change parameters
  • Auto adjust timing and remote retrieve data
  • Uplink on periodically or Interrupt
  • Downlink to change configure

Common DC characteristics

  • Supply voltage: Built-in 4000 mAh Li-SOCI2 battery
  • Operating temperature: –40 °C to 85 °C

TVOC sensor

  • 0 ppb to 29206 ppb (values outside this range are clipped)
  • Temperature and humidity compensation

eCO2 sensor

  • 400 ppm to 32768 ppm (values outside this range are clipped)
    Note: eCO2 (equivalent calculated carbon-dioxide) is different vs the CO2. It is calculated by TVOC value.
  • Temperature and humidity compensation

Temperature sensor

  • Range: –40 °C to 80 °C
  • Accuracy: Typ. ± 0.3 @ 0 °C to 90 °C
  • Resolution: 0.01 °C
  • Long-term shift: Typ. < 0.02 °C/yr

Relative humidity sensor

  • Range: 0% to 99.9% RH
  • Accuracy: ± 3% RH (0% to 100% RH)
  • Resolution: 0.04% RH
  • Long-term shift: < 0.25 %RH/yr

Power consumption

  • Deep-sleep mode/idle mode: 9 uA
  • Sampling mode: 11.8 mA @ 2 seconds for every 60 seconds
  • LoRaWAN transmit mode: 125 mA

Battery life

  • 7–10 months


  • Home and building automation
  • Industrial monitoring and control
More Information
Model Number SW-LAQ4US915
Brand Dragino
Product Type Sensor
Application Air Quality
Technology LoRaWAN
Sensor Type Air Quality
Power Battery
Battery Life 7–10 Months
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