2.7K views · 25 reactions | Time again today for the quarterly test of the sirens that warn of an important public announcement. The tests take place at 3pm on the first Monday in March, June, September, and December. If you hear the sirens at any other time then go inside, listen to your local P4 radio station or visit www.krisinformation.se to find out what the important public announcement is about and what you should do. Photo: Henrik Montgomery / TT. | Radio Sweden | Facebook

In order to make sure everything works despite harsh winter conditions, we perform cold climate tests close to the Arctic circle in northern Sweden. Welcome to the first episode of our new series Let's talk about tech! | Saab