Stabila 48 inch dust and waterproof electronic level with case and batteries; Made in German with an illuminated display. Ability to temporarily hold readings for future reference. Control sound to show level when display is out of view. Plus, set any angle at 0 degrees for a starting point. Display flips to read correctly when in upside down position. Calibration button and removable end caps for tight corner readings. Protective shock-absorbing end caps to protect your level.