SEM 3 contains the photoelectric scanning head SH 2015 to detect pulses from electronic meters. This scanning head provides a ring magnet to attach the unit to solid-state meters. It is suitable for a wavelength range of 610 nm to 1000 nm.

An adapter cable for direct connection to the external interface (EXIF) connector on the rear of a CMC 356, CMC 256plus, CMC 430, CMC 353 or CMC 310 is included in delivery.