Teslameter

The Teslamter is a highly sensitive hand-held fluxgate magnetometer made for the precise measurement of weak magnetic fields from 1 nt (nanotesla) to 200 Aut (dc to 1 khz). It is already used by many advanced scientists all over the world in various fields. Typical applications are: measurement of the earth's field, detection of ac fields from power lines, paleomagnetic investigations, package inspection, and residual field measurements.
3 selectable meas. Ranges:

A 2 Aut, A 20 Aut, and A 200 Aut
resolution: 1 nt
accuracy: 0. 5% A 5 nt
low noise analog output:

typ. 20 pt/hz1/2 @ 1 hz
bandwidth: dc. . 1 khz (-3 db)
water-protected enclosure (ip 65)
push-button ambient field cancelling