| Why gadget? Well, look on the WIKIPEDIA definition of this term:
JoergT (13)
![Level and distance gauge with alarm function [140209-I]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.fr%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Ffront1b2-0.jpg)
| This project achieves a measuring instrument with the following functions:
![Programmable Refrigerator Watchdog in Raspberry Pi Box [130382]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.fr%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Fkw2b.jpg)
| Who realizes this little project gets a device with the following functions:• Displaying the current refrigerator temperature• Monitoring th...