Like all devices of the INLINE 2000 series, SPARK 2000-BS includes various interfaces (RS 485, Profibus DP and analogue interface) for data transfer and setting via a line control computer or for adaptation to the REMOTE 2000 or ECOCONTROL 2000. The solid electrode and the electronic box of the SPARK 2000¬-BS device form one integral unit. Optionally, the display/control panel REMOTE 2000 can be fully integrated. Optionally, the display and control panel REMOTE 2000 can be fully integrated. DISPLAY 2000 can be installed to visualise the test voltage.