Instrument for measuring the inclination of the Earth’s magnetic field and also for mapping the magnetic field of a current-carrying conductor. The bearings are of agate upon which the magnetic needle is mounted in a frame with reference circle. The frame is equipped with an additional reference circle. There are two 4 mm sockets included for power supply. Length of magnet needle: approx. 100 mm Dimensions: approx. 180x100x220 mm³ Weight: approx. 620 g