Undetected gas leaks can have extremely nasty consequences. Unlike a leaking tap, a gas leak can be at risk of explosion and, in the case of a carbon monoxide leak cause poisoning or even possibly death. One way to avoid these consequences is to acquire a gas detector, or even better, to make your own! This is exactly what Stefan G has done using a Particle Photon, a gas detector module and a buzzer. To find out more about this project and to learn how you can make your own gas detector checkout this following link.