The advanced indoor environment sensor. ERS Sound LoRa is an advanced LoRaWAN® device for indoor environment measuring. This device is discrete and has a minimalistic design which makes it ideal for mounting on a wall or any surface. The ERS Sound LoRa will monitor both peak and average sound levels and are a perfect device for places where the level of sound is important. Be able to create the best environment in libraries, classrooms, airports, or other similar places. This sensor is also has a traffic light feature to let you know when a certain threshold has been reached. The threshold value is configurable, and you can choose the color of the light, the frequency, and the light intensity