dBActive is a mobile application built to work with both Android and iOS devices. Working through a Bluetooth® connection, dBActive allows you to control your Optimus+ sound level meter through your smartphone, meaning that sound measurements can be taken remotely, from up to 10 meters away from the instrument. This makes the Optimus+ the ideal piece of equipment for capturing noise data in hard-to-access or potentially dangerous environments; simply fix your instrument to a tripod, connect it to your smartphone, and start measuring.