Measuring implements, measuring apparatus, measuring instruments, control devices, control apparatus, control instruments, regulating apparatus, regulating apparatus (regulators), regulating instruments, signal appliances, signalling apparatus, signal instruments, checking (supervision) apparatus, checking (supervision) apparatus, checking instruments, recording apparatus, registering apparatus, registering instruments, computer programs for the aforesaid goods, the aforesaid goods included in this class; physical, electric, electronic, electromagnetic, electromechanical, optical, acoustic, particle radiation, ultrasound, hydrostatic and mechanical measuring, control, regulating and inspection apparatus and computer programs therefor, in particular the aforesaid for determining and monitoring process pressure and for determining and monitoring levels in containers; capacitive, hydrostatic, pulse-echo, light-optical and laser, electromechanical, particle radiation, vibration, conductivity and microwave level measuring devices and apparatus, and analysis, display and protection devices apparatus and instruments therefor, parts for the aforesaid devices, apparatus and instruments; computer programs for operating the aforesaid equipment, apparatus and instruments (all the aforesaid goods included in this class)