This Directive applies to the devices and systems with a measuring function defined in the instrument-specific annexes concerning water meters (MI-001), gas meters and volume conversion devices (MI-002), active electrical energy meters (MI-003), heat meters (MI-004), measuring systems for continuous and dynamic measurement of quantities of liquids other then water (MI-005), automatic weighing instruments (MI-006), taximeters (MI-007), material measures (MI-008), dimensional measuring instruments (MI-009) and exhaust gas analysers (MI-010).
Ta direktiva se uporablja za naprave in sisteme za merjenje, določene v prilogah o posameznih instrumentih, ki zadevajo vodomere (MI-001), plinomere in korektorje (MI-002), števce delovne električne energije (MI-003), merilnike toplotne energije (MI-004), merilne sisteme za zvezno in dinamično merjenje količin tekočin razen vode (MI-005), avtomatske tehtnice (MI-006), taksimetre (MI-007), opredmetene mere (MI-008), dimenzionalne merilne instrumente (MI-009) ter analizatorje izpušnih plinov (MI-010).