Anyone who steps unwanted over the threshold of a property with a Peperosso atomiser installed can expect an immediate burning sensation as chilli paprika is sprayed in their face. The instruction booklet promises “tears and coughing” and “a lot of slime”.

“We usually talk about paprika as the most popular ingredient in our national cuisine,” says Erika Madlena, from the Hungarian company Umirs that makes the Peperosso. “But in this case it provides an effective and good value way of safeguarding your home from intruders”.

At under €500, the slick white gadget is at the cheaper end of the market at the Perimeter Protection trade fair, which is taking place in Nuremberg this week. Umirs, for instance, also sells a range of perimeter electric fence systems, which cost several thousand dollars per metre.

About 100 companies – all leaders in the field of “perimeter protection components”– are in Nuremberg, selling fences, gates, electronic barriers and much more besides.

Read more: ‘People really feel the lack of security right now’ – a day at a fencing trade fair