BlueLevel is a Java library for the serial communication protocol of Wyler's inclination sensors such as BlueLevel2D and BlueClino. The BlueLevel2D is a two-axis inclination sensor, while the BlueClinio is a single-axis measuring device with a large measuring range. This library provides an interface for BlueLevel2D and BlueClino to use these sensors as active sensors within a monitoring network. For comunication, the RxTx interface is used.

The bundle adjustment is written in the platform-independent programming language Java and, therefore, the software is runnable at each platform and operation system that provides a Java Runtime Environment (JRE). The JRE can be found for several platforms at Oracles download page or at the OpenJDK-project pages.