For sale is a set consisting of four photo-electronic smoke detectors of the brand Unitec, model EIM-210. The smoke detectors are in the original packaging. According to the manufacturer, batteries are included in the scope of delivery. Due to the age of the batteries, it is recommended to check or replace them before commissioning.The pictures are part of the article description.A guarantee for completeness, quality, function or the absence of further defects is not taken over.