https://www.doorbird.com/en/shop/downloads/datasheet/datasheet_d1101fv50_surface_housing_en.pdf
Doorbird Intercom D1101FV Fingerprint 50 Surface-mounting housing (Backbox)
$169.78
Stainless Steel V2A
(GTIN/EAN: 4260423873094, P/n: 423873094)
Fits only a D1101FV IP Video Door Station