SEZO SL - indoor air quality

Monitoring Valuable Objects

SEZO SL is a compact low-power telemetric device, measuring light intensity, equipped with an accelerometer, magnetometer and motion detector. It is used to monitor indoor conditions for various scenarios, including sub-zero temperatures and indoor air quality based on VOCs (Volatile Organic Compounds).


SEZO SL is battery powered. The use of low power LoRaWAN technology extends the battery life of the device up to 3 years of SEZO SL use. This allows the device to be mounted in any place, even in a hard to reach.


It allows the devices to use unlicensed ISM band – which means no subscription fees are required. The devices using LoRaWAN send data either after being triggered by an event (e.g. movement, switching on the light) or based on a fixed schedule (e.g. every 15 minutes).


It enables easy USB configuration or device preconfiguration according to customer requirements. It is also possible to connect the device to another, already existing platform that your company uses, thanks to the possibility of easily establishing a network server, eg The Things Stack, Chirpstack. The decoder is available for download on github SEZO.

SEZO SL - monitoring valuable objects
  • SEZO SL measures such parameters as light leveltemperature, humidity and air pressure.
  • Built-in accelerometer and PIR sensors allow detection of human presence up to 3 meters from the device.
  • SEZO SL transfers data at the time of the event or at user-defined intervals. Configuration is via USB.
  • SEZO SL can be used indoors, also in situations where the temperature in the building is below zero – it works without interruptions at temperatures from -30 to +60°C.
  • LoRaWAN technology enables long-distance data transmission – the distance between the device and the gateway can be up to 10 km.
  • SEZO SL device is battery-powered and thanks to the use of LoRaWAN technology for long-distance transmission, the life of SEZO SL batteries is up to 3 years.
SEZO SL - monitoring valuable objects

Get in touch with us to create a personalised system tailored to your needs. We will be happy to provide support starting with the concept phase and ending with the implementation of your system.

Use Cases


 The SEZO SL device enables controlling of the environment on the premises to ensure optimal conditions for storage. It is especially important in case of FMCG (Fast Moving Consumer Goods) such as packaged foods, toiletries or beverages, where the right temperature, as well as levels of humidity or luminosity need to be ensured.

Facility managers leverage SEZO SL as a part of the security system – the integrated accelerometer enables measurement of shocks and/or movements (e.g. of objects such as doors or stored goods) and can potentially decrease response time of facility security (more reliable than CCTV).

SEZO SL is capable of sending data via LoRaWAN to Orange Live Objects platform.


SEZO SL, thanks to its ability to measure such environmental parameters as temperature and humidity, is leveraged by office managers to ensure not only comfortable, but also stable working conditions for the employees. Each parameter is configurable via USB and can therefore be adjusted to any specific needs.

SEZO SL also allows you to monitor indoor air quality in real time – by bringing your hand close to the device, the color of the LED will determine the current indoor air quality. In this way, the device ensures optimal conditions for office workers.

The device has an alarm threshold configuration for all measured parameters and is capable of sending data via LoRaWAN to Orange Live Objects platform.


The SEZO SL device is used by greenhouse owners.

SEZO SL helps ensuring that a certain temperature, humidity and light level within the greenhouse is maintained. This, in turn, helps preserve a climate within the greenhouse optimal for the plants requiring such regulated conditions.

Thanks to the high sensitivity of the device and the accuracy of the measurements, the environment can be very precisely controlled.

The SEZO SL device sends data to the Orange Live Objects platform, which offers an easy and transparent way to monitor and analyse the data.


SEZO SL is used in public buildings such as railway stations, libraries and shopping malls to complement existing control and security systems.

A motion detector, which is an integral part of SEZO SL, allows to control the number of people staying inside buildings. This allows public institutions to estimate the number of people in a room and prevent overcrowding, thus avoiding the associated danger – for example in case of evacuation or panic.

In addition, SEZO SL is used by building managers as an alarm system – during building closure hours, SEZO SL monitors movement and reports any undesired activity.

SEZO SL is capable of sending data via LoRaWAN to Orange Live Objects platform.

Do you want to share information about SEZO SL with your company’s CTO?
Send a link to this page or attach a brochure in PDF format – available for download below.


Measured parameters

Temperature, humidity, air pressure, luminosity, acceleration, magnetic field, motion (PIR), indoor air quality

Operating temperature

-30 ÷ 60°C

Measurement range and accuracy

  • Temperature: -30 ÷ 60°C, typ. ±0.5°C, max ±2°C

  • Humidity: 0 ÷ 100 [%RH], typ. ±4%, max. ±7% @25 [°C]

  • Air Pressure: 300 ÷ 1100 [hPa], typ. ±1 [hPa] max. ±3 [hPa]
  • Luminosity: 0 ÷ 1000 [lx], typ. ±10%, max ±35% @500 [lx]

  • Accelerometer: 0 ÷ ±157 [m/s2]

  • Magnetometer: 0 ÷ ±49 [gauss]

  • PIR motion detection: 10 [m] range for human-sized object

  • Indoor Air Quality: 0 ÷ 500 [IAQ Index]

Communication protocol

LoRaWAN v1.0.3, Class A device

Frequency and transmission power

868 MHz, max. 14 dBm

Data transmission interval

Default 15 minutes (configurable) or event-triggered


3.6 [V],  3500 [mAh]


IP40, ABS, four mounting holes


90 [g]

Product dimensions

Body: 74 x 74 x 25.5 [mm]

Contact us to create a system tailored to your requirements. We will be happy to provide support from the concept phase to the implementation of your system.

Our engineers are experienced in solving EMC problems - you can be sure that the tested device is EMC compliant.

aleja Zwycięstwa 96/98
81-451 Gdynia, Poland

+48 58 663 10 10

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Air quality - Tricity & surroundings

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SEZO sp. z o.o.  realizuje projekt dofinansowany z Funduszy Europejskich
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