LoRaWAN® Carbon Dioxide
Sensor (4 in 1)

Monitoring CO2 Levels and More in Outdoor or Harsh Environment

em500 outdoor co2 sensor front small
em500 outdoor co2 sensor left small
em500 outdoor co2 sensor right small
  • Measuring CO2 Ranges from 400 ppm to 5,000 ppm
  • 4 Sensors in 1 for Various Outdoor Usage
  • IP65 Rated for Harsh Environment
  • LoRaWAN® Wireless Deployment with Low Power Consumption
  • Data Integrity and Easy Management
  • Long-Lasting Battery Life of up to 10 Years
  • Easy Configuration via NFC

Meet the Robust EM500 Series Outdoor LoRaWAN® Sensor

The EM500-CO2 is designed for monitoring CO2 concentration, temperature, humidity and barometric pressure in outdoor scenarios.


More than Just a Carbon Dioxide Sensor

EM500-CO2 is designed for measuring gaseous carbon dioxide (CO2) concentration in harsh environments. It is useful in the application where knowing CO2 level is important like greenhouse, building ventilation, fruit and vegetable storage. Besides, it also supports temperature, humidity and barometric pressure measurement.

Ultra-Rugged Enclosure for Harsh Environment

This device is designed to withstand even the most demanding environments. EM500-CO2 can function properly even in outdoor and harsh environment.

Typical Applications

Smart Wine Cellar

Carbon dioxide is a by-product produced during the fermentation of wine. Because the density of carbon dioxide is heavier than air, it is easy to overflow from the fermentation tank. When it falls on the ground of the winery, it will form fatal and undetectable potholes, which will bring great hidden danger to the safety of the operators.

Forest Fire Detection

Nowadays, forest fires often cause serious threats to the environment and produce real emergency situations and natural disasters. Most of the times, when someone notices about the fire, it is too late because the fire has spread already. Thus, the enhancement of forest fire detection system by CO2 (carbon dioxide) monitoring can be evaluated.

em500 outdoor co2 sensor wine
em500 outdoor co2 sensor forest

Long Battery Life

The EM500-CO2 is equipped with high-capacity and easily-replaceable batteries. This facilitates the installation and maintenance process and reduces wiring costs.

em500 outdoor co2 sensor lorawan

LoRaWAN® Based

  • Penetrating Signals: data transmission range up to 2 km in urban areas and 15 km in rural areas
  • High Compatibility: compliant with standard LoRaWAN® gateways and network servers

Cloud Data Management
Milesight IoT Cloud

  • Data Visualization Dashboard:
    All figures in a glance
  • Automatic Triggers:
    Interactive collaboration with Milesight IoT sensors
    to realize scene-based automation
  • Regular Reports & Real-Time Alerts:
    Data-based insights
  • Android & iOS App:
    Manage devices at your fingertips

Easy Configuration

Switching on/off and configuring the device via NFC technology from mobile phone or PC

em500 outdoor co2 sensor nfc configuration a

1st Step

Install the
Milesight ToolBox

em500 outdoor co2 sensor nfc configuration b

2nd Step

Enable NFC and run ToolBox,
then attach your phone to the device

em500 outdoor co2 sensor nfc configuration c

3rd Step

Verify the password
and start configuring

Explore More About NFC Configuration >>

Installation in Better Ways

em500 outdoor co2 sensor installation a

Wall Mounting

em500 outdoor co2 sensor installation b

Pole Mounting

em500 outdoor co2 sensor installation c

DIN Rail Mounting


Wireless Transmission
Tx Power16dBm(868)/20dBm(915)/19dBm(470)
Sensitivity-137dBm @300bps
ModeOTAA/ABP Class A
Carbon Dioxide (CO2)
Sensor TypeNDIR
Range400 - 5000 ppm
Accuracy± (30 ppm + 3 % of reading) (0°C - 50°C, 0 - 85%RH)
Resolution1 ppm
Sensor TypeMEMS
Range-30°C to + 70°C
Accuracy0°C to + 70°C (+/- 0.3°C), -30°C to 0°C (+/- 0.6°C)
Sensor TypeMEMS
Range0% to 100% RH
Accuracy10% to 90% RH (+/- 3%), below 10% and above 90% RH (+/- 5%)
Resolution0.5% RH
Barometric Pressure
Sensor TypeMEMS
Range300 - 1100 hPa (-40°C - 85°C)
Accuracy±1 hPa
Resolution0.1 hPa
Power On & OffNFC, Power Button (Internal)
ConfigurationMobile App(via NFC) or PC software(via USB Type-C)
Advanced FeaturesData Storage (1000 pieces), Data Retransmission, Threshold Alarm
Physical Characteristics
Power Supply19000 mAh Li-SOCL2 Battery (ER34615)
Battery Life*10 years (10 min interval)
Operating Temperature-30°C to +70°C
Relative Humidity0% to 100% (non-condensing)
Ingress ProtectionIP65
Dimension147.9 × 71 × 69.5 mm (5.8 × 2.8 × 2.7 in)
InstallationPole, Wall or DIN Rail Mounting
RegulatoryCE, FCC, RoHS, LoRaWAN® Certified, ISED, ICASA
EMCEN 55032, EN 55035
EMSIEC 61000-4-2 Level 3
IEC 61000-4-3 Level 2
IEC 61000-4-8 Level 4
Radio FrequencyFCC Part 15B, FCC Part 15.247, EN 300 330, EN 301 489-1/3, 
EN 300 220-1/2

* Tested under laboratory conditions and for guideline purposes only.


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