The best of the ERKA tradition is reduced to the essentials!
A sound chamber geometry that has been perfected over the course of decades in ombination with the modern ERKA Dual Membrane provides the best possible uscultation across the entire frequency range. Auscultation is optimised by the high pecific weight of the brass body, reliably eliminating ambient noise.
The brass bell. Free of pores and chrome-plated in high-gloss polished or matt version.