A free app for Android, by SICK AG.
SOPASair is a project of SICK, the world leader in the manufacturing of safety equipment for electric power systems. SOPASair connects via a mobile device to various safety equipment. It allows you to visualize the current status and process data of the sensor and change its configuration. Furthermore, a simulator mode allows you to find out the sensor's configuration and visualization capabilities even if you don't have the physical device.
It is a free, open source and versatile tool for the inspection and configuration of safety equipment. It offers a wireless connection to many safety equipment, like the SOPAS3 or SOPAS4 sensors. Furthermore, it allows you to share the stored parameter sets via email for further investigation or documentation purposes.