https://www.sicher4you.com/category/9787/rauchmelderweekly 0.7 https://www.sicher4you.com/product/39380/abus-rauch-und-hitzewarnmelder-rwm450-funkvernetzbardaily0.9 https://www.sicher4you.com/product/39397/abus-rauch-und-hitzewarnmelder-rwm250daily0.9