- on Test & Measurement
- Published in issue 7/2011 on page 82
Laser Level Detector
Rotating laser levels, which are very handy for setting objects in a room or garden at the same height, are available cheaply. At relatively large distances and for outdoor use, the light from the rotating laser beam is often not easy to see, and the laser beam detector described here can be useful in such situations. The detector works well at distances up to 50 metres (150 feet) and consists entirely of standard components.