The Zerhex ON AIR is a fully automated on air monitoring device that monitors the broadcasting status of your Zerhex broadcasting equipment. This device will turn on the on air light if it detects your broadcasting device is streaming. If your device is not broadcasting the light will automatically turn off. This device is used in most cases to alert the broadcaster of the broadcasting status of their Zerhex Broadcasting devices. This devices does not need to be on the same network as your broadcaster, both devices can be located on different continents with different internet connections and it will still get broadcast status.