Key Features of Sokkia B20/ B30/ B40 Auto Level

Precise, Reliable Automatic Compensator
The B series levels incorporate the most precise and reliable compensator available in the market today. The technological superiority of the Sokkia automatic levels has been proven since the release of the best-selling B2 model in 1963. Four super-high-tensile suspension wires and magnetic damping system ensure accuracy and stability even when exposed to temperature changes, vibrations, or shock.

Superior Telescope
Optimally designed telescope provides exceptionally bright and sharp view that reduces operator’s eye strain. Ultra-short focus distance of 20cm (7.9in.) from end of telescope makes it easiest to use in confined locations.

Quick Collimation
Two knobs of endless horizontal motion drives can be operated with either hand for fast and easy aiming.

Horizontal Angle Measurement
Horizontal angles can be read in 1° or 1 gon units. Freely rotatable circle allows any angle reading from zero. Right angles can be quickly set for layout and alignment tasks. The readout window is conveniently located on the instrument base – directly below the eyepiece.

Rapid, Easy Setup
A domed-head tripod makes setting up faster and easier even on inclined, uneven grounds. The B series levels also fit flat-head tripods. The circular level can be seen on a pentaprism or plane mirror located beside the telescope eyepiece.

Stadia
The stadia lines on the reticle allow distance measurements. Simply multiply the staff length between the top and bottom stadia lines by 100.

Easy to Adjust
Reticle adjustment is made with one screw. Circular levels vial is adjusted with two screws. Both adjustments are simple and fast with provided tools.

Standard Equipment
B Series Automatic Level Instrument, Lens Cap, Plumb Bob, Vinyl Rain Cover, Cleaning Cloth, Tool Kit, Operator’s Manual, Hard Carrying Case.

OM5/OM5F Parallel Plate Micrometer (Optional for Sokkia B20 Level)
To achieve the highest precision with the top-of-theline B20 model, the optional parallel plate micrometer OM5 allows for staff readings in increments of 0.1mm (estimation to 0.01mm). Accuracy for 1km double run leveling can be increased from 0.7mm to 0.5mm. Imperial version OM5F has 0.001ft. graduations.