(For deflection magnetometer or tangent galvanometer). Comprising a bakelite moulding case with white aluminium dial graduated 0-90 four times. The magnet with aluminium pointer is pivoted at the center on the jewel so as to move frictionless.
(For deflection magnetometer or Tangent galvanometer) comprising a thick bakelite moulded case of 125mm dia. With lack aluminium dial graduated 0-90 four times,anti parallax mirror slot. The special permanent magnet (small in size) and a light aluminium pointer supported on a steel pivot by jewel bearing sets. The permanent magnet is designed in such a way so that it has maximum magnetic field strength.