We open the fridge, take out something tasty, close the door and... after an hour we see the door is ajar! How much energy was wasted? How many products were spoiled? Too many ... With the Door Ajar alarm in Hansa fridges, such things become a thing of the past. When a door stays open for more than 90 seconds, the light and/or sound alarm is switched on and only switches off when the door is closed. This means comfort, convenience and savings. The products are protected from spoiling, while the fridge does not ice up and requires no defrosting.