CAT III
The device is designed for making measurements in building
installations. Examples are measurements on junction boards, circuit
breakers, wiring, switches, permanently installed sockets, devices for
industrial use as well as permanently installed motors.
CAT IV
The device is designed for making measurements at sources of low
voltage installations. Examples are meters and measurements on
primary overload protection devices and ripple control devices.
DC voltage / current (IEC 60417-5031)
AC voltage / current (IEC 60417-5032)
Audible continuity tester
EN 5