A spirit level is the most common type of leveling device. Sometimes called a bubble level, the spirit level’s name is derived from its mineral spirit-filled vials. The air bubble within the ...

When using a spirit level (aka bubble level) to mark mounting points on a wall, you almost need three hands. The Levelmarker 2.0 is designed to address that problem, by combining level-holding and ...

Whether you are tackling a full-on carpentry project or simply hanging something on your wall, a bubble or spirit level is an essential tool for getting things done right. All of us have had times ...

We promise not to bang on about iPhone applications (this is the Gadget Lab, after all), but this one merits a mention as it actually replaces a piece of hardware. A-Level (the name of which is either ...