Ambient Temperature, Humidity and CO2 Sensor
Brand: IQnexus
Weight: 102g
Dimensions: 68 x 65 x 20.5 mm


The NB103-CO2 monitoring sensor is a IP67 IoT device that measures environmental temperature, humidity and CO2. It is a portable and robust solution to obtain critical information from any environment. You can capture data directly from warehouses Greenhouses, cold rooms, supermarkets, coolers, meeting rooms, offices. Configuration through the LPWAN network, periodic, data encryption and transmission based on events or in real time.


  • Multiple sensors that measures humidity, temperature and CO2.
  • Visual data and clear emoticon to easily understand the comfort levels easily via E-ink screen
  • Traffic light status indicator
  • More than 3 years work without replacing batteries
  • Easy configuration via built-in NFC
  • Compliant with LoRaWAN gateways and network servers
  • Quick and easy management with IQnexus IoT platform


WIRELESS TRANSMISSION Frequency CN470/RU864/IN865/EU868/US915/AU915/KR920/AS923
Tx Power 16dBm (868 MHz)/22dBm (915 MHz)/19dBm (470 MHz)
Sensitivity -137dBm @300bps
Mode OTAA/ABP Class A
SENSORS Temperature Range -20°C – 70°C
Accuracy 0°C to + 70°C (± 0.3°C), -20°C to 0°C (±-0.6°C)
Resolution 0.1°C
Humidity Range 0% – 100% RH
Accuracy 0% – 90% RH (± 3%), below 10% and above 90% (± 5%)
Resolution 0.5% RH
Carbon Dioxide (CO2) Range 400 – 5000 ppm
Accuracy ±(30 ppm or ± 3% of reading)
Resolution 1 ppm
DISPLAY & CONFIGURATION Display NB103: 2.13-inch Black & White E-Ink Screen; NB103L:NL
Button 1 × Power Button
LED  1 × Traffic Light Status Indicator
Configuration Mobile App via NFC
PHYSICAL CHARACTERISTICS Power Supply 2 × 2700 mAh ER14505 Li-SOCl2 Replaceable batteries
Operating Temperature -20°C – 60°C (E-Ink Screen: 0°C – 40°C)
Relative Humidity 10% – 95% (non-condensing)
Ingress Protection IP30
Installation Wall Mounting