Combined Green-Dome RTE Push Button & Resettable Double-Pole Emergency Release, Stainless Steel DBB-22-04 E0901D000020 Default:- Curtain‑style detection: Up to four

Curtain‑style detection: Up to four configurable sensing curtains (alarm + pre‑alarm)

For non‑USB licences customers typically supply the Rose system ID after installation to obtain the licence key — follow Hikvision/Dynamic‑CCTV activation workflow

USB Type‑A charging port (5 V

the SARA range has high efficiency output and comes with a standard 5-year warranty for your peace of mind

Spring terminals and a rotary volume tapping switch are protected from the elements by a cover at the rear

Combined Green-Dome RTE Push Button & Resettable Double-Pole Emergency Release, Stainless Steel DBB-22-04 E0901D000020 Default:- Curtain‑style detection: Up to fourOverview The CDVI DBB2204 is a combined exit device integrating a large green dome RequesttoExit (RTE) momentary push button with a resettable doublepole emergency door release. Supplied with reset keys and a UK doublegang backbox for tidy surface mounting, it provides a singleface solution for egress and emergency release applications in care homes, schools, commercial and public buildings. For full technical details consult the manufacturer