Little info:
Before the war there was official siren map, but when war started they removed it. Waybackmachine doesn't display it sadly.

Update: "Mystery siren" №3 is actually digitex too! someone decided to translate "DSE" to "BGU", but we still dont know what is "BOU". Also found one more siren (с-40/с-28), located at 50.38418347378688, 24.234592001093606 (https://www.google.com/maps/@50.3837...

Made a lot of research today, and found many different things about sirens in Lviv. First of all - siren system they use 1. С-40/С-28 (almost impossible to identify which one it is, because different factories make different shroudings for them) they all mounted on roof's so this is the only one i f...