The CO868LR/ COUS915LR are CO2, Temperature and Humidity sensors with LCD for indoor air quality applications. The radio transmission is based on the new disruptive LoRaTM long range technology at 868MHz & 915MHz. These types of sensors monitor CO2 , T and RH values in a room, meeting room or any generic indoor location. No CO2 calibration is needed. One or two thresholds for each physical characteristics can be remotely set. The sensor can also display on the LCD five rows of text messages, 21 characters each.