IRIS8-laajennusmodule jopa 4 kameralle

**Note:** The original text was in Estonian, not English as mentioned in the instructions. The translation converts:
– ”Silmuse laiend” → ”laajennusmodule” (expansion/extension module)
– ”kuni 4-silmust” → ”jopa 4 kameralle” (up to 4 cameras)
– ”Metallkast” → ”metallilokero” (metal enclosure)
– All brand names (IRIS8, Teletek) and model designations remain unchanged