A buy eyes closed! 5

Certainly we need to invest about ten euros more than the average prices ... but you gain in comfort! First a battery life of 5 years and above a button to temporarily stop (10 minutes) the alarm before the system will call into standby. I installed for my dear mother, who is delighted and has mastered an alert due to a vapor. Buy it, eyes closed! (Supplies to EU and NF standards and validated by 60 million consumers)