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LoRaWAN Quick start

Square Air for LoRaWAN: quick start

From the opened box to a working sensor on one page. The full manual has the details, the settings and the troubleshooting.

Revision A · October 2026 · Sensative AB

Full manual Product page Product sheet (PDF)

Square Air measures indoor air quality (an air quality index, breath-VOC and a CO₂ equivalent) together with air pressure, temperature, humidity and light, and reports them over LoRaWAN.

In the box

  • Square Air, with the adhesive already on the back

The Square screw mounting kit is sold separately.

You need

  • A LoRaWAN gateway, online and in range, added to your account on a LoRaWAN network server
  • The sensor’s DevEUI and AppKey, from the delivery information. The JoinEUI for all Square sensors is 70B3D52C0001D4C3
  • A phone with NFC. Android is recommended; an iPhone needs an NFC reading app
  • A payload decoder for Sensative VSM sensors (built into Yggio)
  • Optional: the Hugin NFC app (Android phone with NFC and GPS), an Yggio user account, and the sensor registered in Yggio with your organisation as its owner

From box to ready

1

Register the sensor in the network server

Add a new end device: activation OTAA, MAC version 1.0.4, regional parameters RP002-1.0.3, and the frequency plan for your region. Enter the DevEUI, AppKey and JoinEUI exactly, and set up decoding of the messages.

Done when: the device is listed in the network server, waiting for its first join.
2

Join the network with NFC

NFC on, phone case off. Lay the phone flat over the lower left corner of the front of Square Air and keep it still for about 5 seconds: that starts the join.

Register the sensor, hold a phone with NFC over the lower left corner, and it joins within about two minutes
Lower left corner of the front, phone held still.
Done when: the network server shows the join, usually within two minutes.
3

Choose the place and check the signal

An inside wall at eye height, where the air moves freely past the sensor, away from direct sun, radiators and draughts, and not near rubbish bins, chemicals, ventilation inlets, doors or windows, which affect the air quality readings. Indoors only (IP30). Check the signal there.

Done when: the link carries at least SF9. As a rule of thumb, SNR above −5 dB and RSSI above −115 dBm.
4

Mount

Adhesive: the surface must be clean and dry. Peel the film off and press the sensor firmly in place. Or screw the two adhesive plates of the Square screw mounting kit to the wall and press the sensor onto them.

Do not cover the two holes in the front with tape, paint or labels. Seen face up, the right hole is the air opening for the gas sensor.
5

Test

Breathe on the sensor, or hold it in your hand for a minute. The gas sensor needs up to 28 days before its values are fully reliable.

Done when: new temperature and humidity readings arrive in your application, and the first air quality values after 30 minutes (the default Air Interval). Disregard the very first ones.

More in the full manual

Settings, troubleshooting, maintenance and specifications are in the Square Air for LoRaWAN manual.

Support: support@sensative.com