Transformers that convert, proportionally, the voltage or current intensity supplied to measuring instruments such as meters, network analyzers, voltmeters, relays and similar devices.
Measurement transformers for voltage, such as the measurement transformer in the MT series available at Torytrans, are designed to work with high voltages and currents, necessary for long distance transmission of electrical power. Their mission is to adapt the current to the levels required by industries and homes, normally around 240 volts.
Measurement transformers for current, such as the measurement current transformer in the MI series at your disposal here, fulfill. essentially, the function of protecting the devices they supply, in the event of a short-circuit in the network.
Series MT 
Series MI