Kern GK0-A
level Kern GK0-A
record number: 77
instrument type: level
manufacturer: Kern
serial number: 15117
model: GK0-A
weight: 1.92 kg
dimensions (l/w/h): 19/11/12 cm
year of manufacture: 1971
instrument set up: circular level
compensator
Telescope
diameter of objective: 30 mm
magnification: 21 x
type: telescope with internal focusing
cross hairs/reticule: Reichenbach's crosshairs
precision: 2.5 mm/km

The compensating level, manufactured in 1971, is a simple instrument without levelling foot screws. The Kern system, using a circular level, enables levelling by moving the conical support over the spherical head of a tripod adapted for it. The instrument is light, compact and very practical to use. Using a conventional levelling staff, a precision of 2.5 mm for 1 km double-run levelling can be achieved.

The instrument is in the same condition as when it was originally taken out of service.