| The audio traffic light is a straightforward circuit which tells you whether an audio signal is dangerous for your ears or not.
![audio traffic light [140082]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimages%2F44%2F20160518111155_no-project-image.png)
| The audio traffic light is a straightforward circuit which tells you whether an audio signal is dangerous for your ears or not.
| The audio traffic light is a straightforward circuit which tells you whether an audio signal is dangerous for your ears or not.
| I find it pretty annoying when I use a multimeter and look at the display only to find out that I accidently disconnected the probe from the...
![Beep - a sounding logic probe/tester [140410]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2F140410-52a.jpg)
| I find it pretty annoying when I use a multimeter and look at the display only to find out that I accidently disconnected the probe from the...