The Nikon AS-2/AE-7 Series automatic levels from Tripod Data Systems (TDS) deliver performance, ruggedness and accuracy to help you get the job done right. Airtight and filled with dry nitrogen gas, they provide reliability in driving rain and high humidity.
Nikon’s world-renowned optics give you brighter, clearer images and an improved minimum focusing distance for working in close quarters. Plus it offers rugged construction and a unique wire-suspended compensator with air damper that automatically levels the line of sight and absorbs fine vibrations.
For more details: