A demonstration meter and may be converted to an A.C or
D.C voltmeter or Ammeter with selection of ranges for each mode of operation
by using one of a series of interchangeable dials which fit through a slot
in the side of the case. The movement comprising a high grade moving coil
galvanometer is housed with in a robust. hardwood case and all the working
parts are clearly visible through the front and rear glass panels. Scales
are marked both sides of each dial. A zero adjustments permits instruments
to be used for centre working.
