Combined Green-Dome RTE Push Button & Resettable Double-Pole Emergency Release, Stainless Steel DBB-22-04 E0901D000020 Default:- The enclosed drum ensures that

The enclosed drum ensures that your cable is protected when not in use and the practical carry handle and winding knob ensure that its portable and easy to use

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

a flush finish is available when used with the matching flush back box

Foldable for easy portability

Combined Green-Dome RTE Push Button & Resettable Double-Pole Emergency Release, Stainless Steel DBB-22-04 E0901D000020 Default:- The enclosed drum ensures thatOverview 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