Wild NA2 - NAK2

Wild NA2 - NAK2 

Wild Heerbrugg introduced his first Automatic Level with a compensator in the year 1960.
In 1970 a new series of automatic levels was introduced with a upgraded Wild NA2 / NAK2. 

The Wild NA2 / NAK2 was the most accurate of this family and its still produced till today !

For both versions, there was / is also a plane parallel micrometer available for even better accuracy.

The Wild NA2 / NAK2 has a standard deviation of  0.7mm for 1km (0.003 ft / 1 mile) 

(0,3mm for 1km (0.0011 ft / 1 mile) with the plan parallel micrometer)

The Wild NA2 Automatic Engineers' Level is particularly useful when accurate readings are required quickly. After the circular bubble has been centered carefully, by means of the foot screws, the line of sight is made horizontal automatically through the pendulum type compensator. As a result the NA2 has neither a tubular level nor a tilting screw. Being insensitive to the sun no umbrella is required and this also helps to speed up the leveling. A plane parallel plate micrometer is now available as an optional accessory to the NA2 (and the NAK2, which is identical to the standard model, with the addition of a glass horizontal circle) and this attachment enables an even higher accuracy to be obtained. With it, direct readings to 0.001 ft. or 0.1 mm are made and estimation to 0.0005 ft. or 0.01 mm is possible without difficulty. The micrometer eyepiece is placed most conveniently just above the telescope eyepiece. The reticule differs from the normal type, as one half of the horizontal line has been replaced by two wedge-shaped lines, converging towards the center so that either the chess-board type of staff or one with graduated lines may be used. The telescope gives a bright, contrasting, upright image and the horizontal rotation is friction-braked, with an endless tangent screw for fine pointing.