Devices / Tags / CO₂

LoRaWAN CO₂ Sensors

Wireless LoRaWAN CO₂ sensors track carbon dioxide concentration to gauge air quality, ventilation and occupancy across long-range, low-power networks.

CO₂ sensing reports the concentration of carbon dioxide in the surrounding air, usually expressed in parts per million (ppm). Because CO₂ levels climb when people exhale in an enclosed space, the reading is a reliable proxy for ventilation adequacy and room occupancy, and a core input for indoor air quality programs.

LoRaWAN CO₂ devices typically pair a non-dispersive infrared (NDIR) sensing element with a low-power radio. They sample at set intervals, encode the value into a small uplink payload, and send it over long range to a gateway. A payload codec on the network server decodes the data for dashboards, alerts and automated ventilation control. Many models also report temperature and humidity in the same message.

Common deployments include schools, offices, meeting rooms, hospitals, greenhouses and demand-controlled ventilation systems. When comparing devices, weigh:

  • Measurement range, accuracy and sensing technology
  • Reporting interval, power source and battery life
  • Enclosure rating and supported regional frequency plans
  • Availability of a documented payload decoder
83 devices
600-023 - Ambient VOC,CO2,Temperature and Humidity sensor ✓ CERT
Enless Wireless

600-023 - Ambient VOC,CO2,Temperature and Humidity sensor

Specifically designed for indoor applications in an ambient environment, the Enless Wireless LoRaWAN CO2, VOC, …

Class A EU863-870
ACW-THAQ - CO2/VOC/Temperature/Humidity Sensor ✓ CERT
atim

ACW-THAQ - CO2/VOC/Temperature/Humidity Sensor

The THAQ facilitates the monitoring of your rooms and buildings thanks to its CO2, VOC (volatile organic …

Class A EU863-870
Air Quality Monitor
IoTsens Gimeno IoT Division

Air Quality Monitor

The IoTsens Air Quality Monitor is a device that consists of a set of environmental sensors for CO, SO2, NO2, …

Class A AS923AU915-928 +2
AM107 - Ambience Monitoring Sensors ✓ CERT
Milesight IoT Co., Ltd

AM107 - Ambience Monitoring Sensors

Ambience Monitoring Sensors

Class A AS923AU915-928 +6
ambiance ✓ CERT
Ewattch

ambiance

LoRa® – 5 in 1 sensor to measure Temperature, CO2, brightness, humidity and presence.

Class A EU863-870
AS201 LoRaWAN Indoor Ambient Environment Sensor ✓ CERT
Atomsenses

AS201 LoRaWAN Indoor Ambient Environment Sensor

3-in-1 Temp / Humidity / CO2 Sensor

Class A AS923EU863-870 +1
AS203 LoRaWAN Indoor Air Quality GAS Sensor ✓ CERT
Atomsenses

AS203 LoRaWAN Indoor Air Quality GAS Sensor

5-in-1 Temp / Humidity / CO2 / TVOC / HCHO

Class A AS923AU915-928 +6
AS204 LoRaWAN Smart Toilet Odour Sensor ✓ CERT
Atomsenses

AS204 LoRaWAN Smart Toilet Odour Sensor

5-in-1 Sensor – Temp / Humidity / CO2 / NH3 / H2S

Class A AS923AU915-928 +6
BREEZE CO2 Smart Room Sensor
Tektelic Communications Inc.

BREEZE CO2 Smart Room Sensor

The TEKTELIC BREEZE is a member of our Smart Room Sensor family and integrates practical functionality into a …

Class A AS923AU915-928 +2
Breeze-V Indoor Ambient Environment Monitoring
Tektelic Communications Inc.

Breeze-V Indoor Ambient Environment Monitoring

Sensor that efficiently monitors CO2 and occupancy

Class A AS923AU915-928 +5
Carbon - Air Quality ✓ CERT
Nexelec

Carbon - Air Quality

Carbon measures the CO2 level and continuously monitors air quality to visually alert occupants when it is …

Class A EU863-870
Carbon Dioxide CO2 ✓ CERT
AgroSense

Carbon Dioxide CO2

The AgroSense The Carbon Dioxide (CO2) Sensor uses the SGP30 sensor to remotely measure CO2 levels in the …

Class A AU915-928EU863-870 +1
CO2 Display
MClimate

CO2 Display

MClimate CO2 Display is a stand-alone CO2 sensor powered entirely by solar energy using an organic solar …

Class A EU863-870
CO2 Display Lite
MClimate

CO2 Display Lite

MClimate CO2 Display lite LoRaWAN is a stand-alone CO2 sensor powered entirely by solar energy using an …

Class A EU863-870
CO2 Sensor and Notifier
MClimate

CO2 Sensor and Notifier

MClimate CO2 Sensor and Notifier is a device that uses NDIR technology to measure the actual CO2 and has built …

Class A EU863-870
CO2 stoplicht ✓ CERT
Teneo IoT

CO2 stoplicht

The Teneo IoT CO2 stoplicht is equipped with a CO2 sensor, temperature sensor, and humidity sensor that alarms …

Class A EU863-870
Comfort CO2 - Indoor Air Quality Sensor ✓ CERT
Adeunis

Comfort CO2 - Indoor Air Quality Sensor

The Adeunis Comfort CO2 has several functions (CO2, temperature, humidity, alert button, dry contact input) …

Class A EU863-870
Comfort Sensor ✓ CERT
IMBuildings B.V.

Comfort Sensor

Sensor for monitoring Indoor Air Quality

Class A AS923AU915-928 +2
Cube - Environment Sensor
GreenMe SAS

Cube - Environment Sensor

Indoor environment sensor

Class AClass C EU863-870
DL-GMM - Greenhouse Multi Monitor ✓ CERT
Decentlab GmbH

DL-GMM - Greenhouse Multi Monitor

The Decentlab DL-GMM includes a Photosynthetically Active Radiation (PAR), temperature, humidity, barometric …

Class A AS923AU915-928 +2
DL-IAM - Indoor Ambiance Monitor including CO₂, TVOC and Motion Sensor ✓ CERT
Decentlab GmbH

DL-IAM - Indoor Ambiance Monitor including CO₂, TVOC and Motion Sensor

The Decentlab DL-IAM (Indoor Ambiance Monitor) is a LoRaWAN® end device that consists of a CO2 sensor, TVOC …

Class A AS923AU915-928 +2
DL-LP8P - CO₂, Temperature, Humidity and Barometric Pressure Sensor ✓ CERT
Decentlab GmbH

DL-LP8P - CO₂, Temperature, Humidity and Barometric Pressure Sensor

The Decentlab DL-LP8P is a LoRaWAN® end device equipped with CO₂, temperature, humidity, and barometric …

Class A AS923AU915-928 +2
EM500-CO2 - Air Quality Sensor ✓ CERT
Milesight IoT Co., Ltd

EM500-CO2 - Air Quality Sensor

The Milesight EM500-CO2 consists of CO2, temperature, humidity, and barometric pressure sensors for measuring …

Class A AS923AU915-928 +6
Environment sensor
n-fuse GmbH

Environment sensor

Environment sensor. BME680 (IAQ, CO2-e, bVOC-e, pressure, temperature, humidity).

Class A AS923AS923-2 +10
ERS CO2 advanced indoor environment ✓ CERT
Elsys

ERS CO2 advanced indoor environment

The ELSYS ERS CO2 is a LoRaWAN® device that has internal sensors for measuring temperature, humidity, light, …

Class A AS923AU915-928 +2
ERS CO2 Lite indoor co2 monitoring ✓ CERT
Elsys

ERS CO2 Lite indoor co2 monitoring

The ELSYS ERS CO2 Lite is a LoRaWAN® device that has internal sensors for measuring temperature, humidity, and …

Class A AS923AU915-928 +2
ES108 LoRaWAN Indoor Air Quality Modular Combo ✓ CERT
Atomsenses

ES108 LoRaWAN Indoor Air Quality Modular Combo

Temp / Humidity / CO2 / PM1.0 / PM2.5 / PM10 / TVOC / NO2 / HCHO / NH3 / H2S

Class A AS923AU915-928 +6
LAQ4 - Air Quality Sensor ✓ CERT
Dragino Technology Co., Limited

LAQ4 - Air Quality Sensor

Air Quality Sensor

Class A AS923AU915-928 +7
LoRa Wireless CO2 Sensor
Mutelcor GmbH

LoRa Wireless CO2 Sensor

The Mutelcor Wireless CO2 Sensor is the batteryu powered version of our well known Smart CO2 LoRa Sensor. It …

Class A AS923AU915-928 +4
LoRIS-BM-TRX1 - Experimental platform for LoRaWAN ✓ CERT
ELV Elektronik AG

LoRIS-BM-TRX1 - Experimental platform for LoRaWAN

The modular system of ELV Elektronik AG makes it possible to carry out LoRaWAN experiments. The basis is the …

Class A EU863-870
LRS10701 - Indoor Air Quality (IAQ) Sensor
Arwin Technology Limited

LRS10701 - Indoor Air Quality (IAQ) Sensor

Indoor Air Quality (IAQ) Sensor

Class A AS923EU863-870 +1
MCF-LW12CO2
mcf88 SRL

MCF-LW12CO2

The mcf88 MCF-LW12CO2 LoRaWAN® indoor environmental sensor equipped with temperature, humidity, pressure, …

Class A AS923AU915-928 +2
MCF-LW12CO2 - Indoor Environmental Sensor
enginko SRL

MCF-LW12CO2 - Indoor Environmental Sensor

The enginko MCF-LW12CO2 LoRaWAN® indoor environmental sensor equipped with temperature, humidity, pressure, …

Class A AS923AU915-928 +2
MCF-LW12CO2E
mcf88 SRL

MCF-LW12CO2E

The MCF-LW12CO2E is a battery powered sensor for indoor applications that reads temperature, relative …

Class A AS923AU915-928 +2
MCF-LW12CO2E - Indoor Environmental sensor
enginko SRL

MCF-LW12CO2E - Indoor Environmental sensor

The MCF-LW12CO2E is a battery powered sensor for indoor applications that reads temperature, relative …

Class A AS923AU915-928 +2
MerryIoT Air Quality CO2 ✓ CERT
Browan Communication Incorp.

MerryIoT Air Quality CO2

The MerryIoT Air Quality CO2 is designed for in-home and in-building usage for consumer or facility management …

Class A EU863-870US902-928
MICA - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA - Indoor Air Quality Sensor

MICA is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity, CO2, PMs and Noise.

Class AClass C AS923AU915-928 +3
MICA MINI - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA MINI - Indoor Air Quality Sensor

MICA MINI is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity and CO2.

Class AClass C AS923AU915-928 +3
MICA MINI Modbus - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA MINI Modbus - Indoor Air Quality Sensor

MICA MINI Modbus is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity and CO2.

Class AClass C AS923AU915-928 +3
MICA Modbus- Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA Modbus- Indoor Air Quality Sensor

MICA Modbus is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity, CO2, PMs and …

Class AClass C AS923AU915-928 +3
MICA Plus - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA Plus - Indoor Air Quality Sensor

MICA Plus is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity, CO2, PMs, …

Class AClass C AS923AU915-928 +3
MICA Plus Modbus - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA Plus Modbus - Indoor Air Quality Sensor

MICA Plus Modbus is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity, CO2, PMs, …

Class AClass C AS923AU915-928 +3
MICA WELL - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA WELL - Indoor Air Quality Sensor

MICA WELL is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity, CO2, PMs, …

Class AClass C AS923AU915-928 +3
MICA WELL Modbus - Indoor Air Quality Sensor ✓ CERT
inBiot Monitoring S.L.

MICA WELL Modbus - Indoor Air Quality Sensor

MICA WELL Modbus is a compact LoRaWAN Indoor Air Quality Sensor that monitors temperature, humidity, CO2, PMs, …

Class AClass C AS923AU915-928 +3
Milesight AM103-LoRaWAN Indoor Air Quality Sensor (3 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM103-LoRaWAN Indoor Air Quality Sensor (3 in 1)

Milesight AM103 is a compact indoor ambience monitoring sensor that supports long-lasting battery life, …

Class A AS923AU915-928 +6
Milesight AM103L-LoRaWAN Indoor Air Quality Sensor (3 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM103L-LoRaWAN Indoor Air Quality Sensor (3 in 1)

Milesight AM103 is a compact indoor ambience monitoring sensor that supports long-lasting battery life, …

Class A AS923AU915-928 +6
Milesight AM307-LoRaWAN Indoor Air Quality Sensor (7 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM307-LoRaWAN Indoor Air Quality Sensor (7 in 1)

Milesight AM307 collects various indoor ambience conditions through 7 built-in sensors and delivers the data …

Class A AS923AU915-928 +6
Milesight am307l-LoRaWAN Indoor Air Quality Sensor (7 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight am307l-LoRaWAN Indoor Air Quality Sensor (7 in 1)

Milesight am307l collects various indoor ambience conditions through 7 built-in sensors and delivers the data …

Class A AS923AU915-928 +6
Milesight AM308-LoRaWAN Indoor Air Quality Sensor (7 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM308-LoRaWAN Indoor Air Quality Sensor (7 in 1)

Milesight AM308 collects various indoor ambience conditions through 7 built-in sensors and delivers the data …

Class A AS923AU915-928 +6
Milesight AM308L-LoRaWAN Indoor Air Quality Sensor (7 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM308L-LoRaWAN Indoor Air Quality Sensor (7 in 1)

Milesight AM308 collects various indoor ambience conditions through 7 built-in sensors and delivers the data …

Class A AS923AU915-928 +6
Milesight AM319-LoRaWAN Indoor Air Quality Sensor (9 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM319-LoRaWAN Indoor Air Quality Sensor (9 in 1)

Milesight AM309 collects various indoor ambience conditions through 9 built-in sensors and delivers the data …

Class A AS923AU915-928 +6
Milesight AM319L-LoRaWAN Indoor Air Quality Sensor (9 in 1) ✓ CERT
Milesight IoT Co., Ltd

Milesight AM319L-LoRaWAN Indoor Air Quality Sensor (9 in 1)

Milesight AM319L collects various indoor ambience conditions through 9 built-in sensors and delivers the data …

Class A AS923AU915-928 +6
Model 4933 Air Quality Gas Sensor
MCCI Corporation

Model 4933 Air Quality Gas Sensor

Temperature, humidity, pressure sensor, Gas sensors (CO, CO2, NO2, O3, SO2) and PM2.5

Class A AS923AU915-928 +4
MODEL A3 - Air Quality Monitoring ✓ CERT
uRADMonitor

MODEL A3 - Air Quality Monitoring

Plug and play advanced air quality monitoring station, enclosed in an aluminium body for rugged design, it has …

Class A AS923AU915-928 +2
MODEL INDUSTRIAL - Air Quality Monitoring ✓ CERT
uRADMonitor

MODEL INDUSTRIAL - Air Quality Monitoring

An automated, fixed monitoring station that tracks a total of 11 important air quality parameters including …

Class A AS923AU915-928 +2
NOVOS 3 LRW - Room Operating Unit
Thermokon Sensortechnik GmbH

NOVOS 3 LRW - Room Operating Unit

Indoor Multifunctional Room Sensor and Operating Unit

Class A EU863-870
OY1210 LoRaWAN CO2 meter ✓ CERT
TalkPool AB

OY1210 LoRaWAN CO2 meter

LoRaWAN sensor that measures temperature, humidity and carbon dioxide, with an incredible maintenance free …

Class A AS923AU915-928 +2
QingPing CO2 & Temperature & Humidity Monitor for LoRaWAN
RAKwireless Technology Co.

QingPing CO2 & Temperature & Humidity Monitor for LoRaWAN

The QingPing LoRaWAN CO2 monitor Sensor is a remote monitoring device that uses nondispersive infrared (NDIR) …

Class A EU863-870US902-928
R718UBB - Wireless Multifunctional CO2 Sensor
Netvox Technology Co., Ltd

R718UBB - Wireless Multifunctional CO2 Sensor

R718UBB all-in-one series is a ClassA type testing device based on LoRaWAN open protocol of Netvox, which can …

Class A AS923AU915-928 +5
R718UBD - Wireless Multifunctional CO2 Sensor
Netvox Technology Co., Ltd

R718UBD - Wireless Multifunctional CO2 Sensor

R718UBD series is a wireless communication device that can detect CO2 in the environment and can be combined …

Class A AS923AU915-928 +5
R726 Series & RA07 Series - Air Quality Sensors
Netvox Technology Co., Ltd

R726 Series & RA07 Series - Air Quality Sensors

Class A AS923AU915-928 +5
R72615A - Wireless CO2/Temperature/Humidity Sensor
Netvox Technology Co., Ltd

R72615A - Wireless CO2/Temperature/Humidity Sensor

The Netvox R72615A has a CO2, temperature, and humidity sensor that detects and transmits CO2 level, ambient …

Class A AS923AU915-928 +5
RA0715 - Wireless CO2/Temperature/Humidity Sensor
Netvox Technology Co., Ltd

RA0715 - Wireless CO2/Temperature/Humidity Sensor

The Netvox RA0715-Wireless CO2/Temperature/Humidity Sensor for measuring temperature and humidity. It also has …

Class A AS923AU915-928 +5
RA0715Y - Wireless Outdoor CO2/Temperature/Humidity Sensor
Netvox Technology Co., Ltd

RA0715Y - Wireless Outdoor CO2/Temperature/Humidity Sensor

The Netvox RA0715Y is an outdoor environmental sensor that consists of CO2, temperature, and humidity sensors. …

Class A AS923AU915-928 +5
RISE - Air Quality
Nexelec

RISE - Air Quality

RISE is a 3-in-1 LoRaWAN-connected, battery- or USB-powered room sensor that can be rapidly configurable via …

Class A EU863-870
RN320-PMT ✓ CERT
Dekist Co., Ltd

RN320-PMT

Indoor Air Quality (IAQ) Sensor

Class A EU863-870
S2103- LoRaWAN® CO2, Temperature, and Humidity Sensor ✓ CERT
SenseCAP

S2103- LoRaWAN® CO2, Temperature, and Humidity Sensor

SenseCAP S2103- LoRaWAN® CO2, Temperature, and Humidity Sensors satisfy industrial long-distance data …

Class A AS923AU915-928 +5
SIGN - Air Quality, VOC, Light, Movement, Sound
Nexelec

SIGN - Air Quality, VOC, Light, Movement, Sound

SIGN is a 7-in-1 LoRaWAN-connected, battery- or USB-powered room sensor that can be rapidly configurable via …

Class A EU863-870
Smart CO2 LoRa Sensor (IP30, IP54)
Mutelcor GmbH

Smart CO2 LoRa Sensor (IP30, IP54)

The Mutelcor Smart CO2 LoRa Sensor is a unique power-driven Air Quality sensor. It measures CO2, Temperature …

Class A AS923AU915-928 +4
SPU20 - Senspuck Pure PV
Senzemo

SPU20 - Senspuck Pure PV

The Senzemo Senpuck Pure is an indoor LoRaWAN® air quality sensor that measures CO2, TVOC, temperature, …

Class A AS923AU915-928 +2
SPU20B - Senspuck Pure Battery
Senzemo

SPU20B - Senspuck Pure Battery

The Senzemo Senpuck Pure is an indoor LoRaWAN® air quality sensor that measures CO2, TVOC, temperature, …

Class A AS923AU915-928 +2
Thanos Evo LRW - Room Operating Unit
Thermokon Sensortechnik GmbH

Thanos Evo LRW - Room Operating Unit

Full Touch Room Operating Unit for Controlling with optional wired BMS connection

Class A EU863-870
Urban Air Quality Monitoring Station ✓ CERT
Develiot

Urban Air Quality Monitoring Station

The Develiot Urban Air Quality Monitoring Station equipped with a wide range of sensors such as air quality …

Class A AS923AU915-928 +7
Vaqa'O - Temp/Hum/VOC/CO2 Sensor ✓ CERT
WATTECO

Vaqa'O - Temp/Hum/VOC/CO2 Sensor

The WATTECO Vaqa’O sensor is a LoRaWAN® device that measures the temperature, relative humidity, and carbon …

Class A EU863-870
Vaqa'O - Temp/Hum/VOC/CO2 SensorTemp/Hum/VOC/CO2 Sensor ✓ CERT
nke WATTECO

Vaqa'O - Temp/Hum/VOC/CO2 SensorTemp/Hum/VOC/CO2 Sensor

The nke WATTECO Vaqa’O sensor is a LoRaWAN® device that measures the temperature, relative humidity, …

Class A EU863-870
Vaqa'O Lite - Temp/Hum/CO2 Sensor ✓ CERT
WATTECO

Vaqa'O Lite - Temp/Hum/CO2 Sensor

The WATTECO Vaqa’O Lite sensor is a LoRaWAN® device that measures the temperature, relative humidity, and …

Class A EU863-870
Vaqa'O Multi Lite - Temperature, Humidity, Luminosity, Atmospheric Pressure, IAQ, CO2 & motion sensor ✓ CERT
WATTECO

Vaqa'O Multi Lite - Temperature, Humidity, Luminosity, Atmospheric Pressure, IAQ, CO2 & motion sensor

The Watteco VAQA’O Multi Lite is a LoRaWAN® device that measures Temp/Hum/AtmP/IAQ/CO2/Lum/Motion Sensor in …

Class A EU863-870
Vaqa'O Multi Lite - Temperature, Humidity, Luminosity, CO2 & motion sensor ✓ CERT
WATTECO

Vaqa'O Multi Lite - Temperature, Humidity, Luminosity, CO2 & motion sensor

The Watteco VAQA’O Multi Lite is a LoRaWAN® device that measures Temp/Hum/CO2/Lum/Motion Sensor in the ambient …

Class A EU863-870
Vaqa'O+Plus - Temp/Hum/VOC/CO2/Motion Sensor ✓ CERT
nke WATTECO

Vaqa'O+Plus - Temp/Hum/VOC/CO2/Motion Sensor

The nke WATTECO Vaqa’O+ has sensors for measuring temperature, relative humidity, atmospheric pressure, the …

Class A EU863-870
Vaqa'O+Plus - Temp/Hum/VOC/IAQ/CO2/Motion Sensor ✓ CERT
WATTECO

Vaqa'O+Plus - Temp/Hum/VOC/IAQ/CO2/Motion Sensor

The WATTECO Vaqa’O+ has sensors for measuring temperature, relative humidity, atmospheric pressure, IAQ based …

Class A EU863-870
Wireless CO2 Sensor - LoRaWAN® ✓ CERT
SenseCAP

Wireless CO2 Sensor - LoRaWAN®

The Seeed Studio SenseCAP Wireless CO2 Sensor connects an external NDIR CO2 sensor that measures levels of CO2 …

Class A AS923AU915-928 +2
YO Ambience ✓ CERT
Yosensi Sp. z o.o.

YO Ambience

YO Ambience is a compact indoor ambience monitoring device designed to measure temperature, humidity, …

Class A AS923AU915-928 +2
YO Pure Pro ✓ CERT
Yosensi Sp. z o.o.

YO Pure Pro

YO Pure Pro is a device for measuring indoor environmental conditions. The device measures concentrations of …

Class A AS923AU915-928 +2

Top vendors

Manufacturers with the most co₂ devices in the catalog.

Related

Frequently asked questions

What does a LoRaWAN CO₂ sensor measure?

It measures the concentration of carbon dioxide in the air, typically reported in parts per million (ppm). Rising CO₂ indicates poor ventilation and higher occupancy, so the reading is widely used as a proxy for indoor air quality and fresh-air supply.

How do LoRaWAN CO₂ sensors send their data?

Most use a non-dispersive infrared (NDIR) sensing element and transmit periodic uplinks over a LoRaWAN network. Readings are encoded in a compact payload, decoded by a codec on the network server, and forwarded to your dashboard or application.

What should I compare when choosing a CO₂ sensor?

Look at measurement range and accuracy, the sensing technology, reporting interval and battery life, power source, enclosure rating for the install environment, supported regional frequency plans, and whether a payload decoder is provided.