Spirit Levels for Working at Height Secure Tools provide a selection of spirit levels designed for safely and conveniently working at height. Spirit levels are the ideal tool for measuring small inclination or angle of tilt. Made of high-quality components, we stock a range of spirit levels in different sizes that are built to withstand years of hard-wearing use. Included in the selection is a range of magnetic spirit levels too – ideal for when you need both hands free to carry out your work. And, each spirit level we stock is equipped with a sturdy open ring attachment, providing a fixed point of tether to help prevent dangerous tool droppages when working from height.