SECO offers heavy-duty, lightweight, accurate Hand levels for surveying work in even the roughest terrain. A external vial model is available, and all feature 3-line mirrors and deviation of less than 1/4 inch per 20 feet.
Tools from 5 to 7 inches are available, as well as 1- or 2-power models.
All come with a padded orange nylon case to protect them while in the field or on the job.