For converting electrical signals to EnOcean radio. This can be used to control the PP 45 RC and PPB 30 RC devices. Is connected to the RLS 45 K room air control via an RS485 interface. This also makes a system combination of wired PP 45 K and radio devices PP 45 RC / PPB 30 RC possible. With the PP 45 EO extension module, additional EnOcean modules, e.g. radio sensors (H, CO2), can be integrated.Article: PP 45 EO, Installation location: Wall, Installation type: Flush-mounted, Material: Plastic, Color: pure white, similar to RAL 9010, Weight: 0.063 kg, Weight with packaging: 0.166 kg, Width: 80 mm, Height: 80 mm, Depth: 49 mm, Width with packaging: 233 mm, Height with packaging: 170 mm, Depth with packaging: 60 mm