Electrical and electronic equipment, namely, electric controllers for controlling operation of elevator doors; electronic and signaling apparatus and instruments, namely, electronic speech annunciator to communicate to elevator users; data processing equipment and computers; computer hardware and firmware for detection of persons in elevator doorways and for sending speech messages to persons in elevator; computer software for detection of persons in elevator doorways and for sending speech messages to persons in elevators and lift installations and control equipment therefor; parts and fittings for all the aforesaid goods