The ABB Busch-Smoke Alarm ProfessionalLINE (6833-84-500) is a standalone photo-optical smoke detector for early detection of smouldering and open fires with smoke build-up indoors. It uses the Tyndall measuring principle, carries a sealed-in lithium battery rated for at least 10 years, and is tested to DIN EN 14604 — ideal for bedrooms, living areas, and single-room coverage where networking is not required.

Studio-white finish (RAL 9016). Not networkable — for multi-detector linking or free@home integration, use the networkable sister model 6833/01-84-500.

Key Features

• Photo-optical detection (Tyndall): Early warning of smouldering and open fires with smoke development.
• 10-year sealed lithium battery: Permanently installed power supply; no routine battery swaps.
• Test / mute button: Combined test and pause control for commissioning and nuisance-alarm handling.
• Audible alarm: Built-in horn at 85 dBA measured at 3 m.
• Dismantling safety: Helps prevent unauthorized removal in rental and public housing.
• Standalone operation: Single-room detector — not wire- or radio-networkable.

At a Glance

Specification	Detail
Product type	Standalone optical smoke alarm (ProfessionalLINE)
Order code	6833-84-500
Product ID	2CKA006800A2720
Networking	Not networkable
Alarm sound	85 dBA at 3 m
Power	Sealed lithium battery, ≥ 10 years
Dimensions	Ø 120 mm × 47.5 mm height
Finish	Studio white (RAL 9016)
Protection	IP20
Standards	DIN EN 14604

Installation and operating instructions, dimension drawing, declaration of performance, and EU DoC are available under Downloads.

Applications

• Bedrooms and living rooms: Discrete ceiling-mounted early warning without bus wiring.
• Single-room / retrofit: Battery-powered unit where KNX or free@home smoke networking is out of scope.
• Rental and social housing: Sealed battery and dismantling safety reduce misuse and maintenance visits.
• Related accessories: Need networked alarms? Choose 6833/01-84-500. For RF mesh on the networkable model, add 6828 RF module; optional relay interface 6829-84.

Installation Notes

Surface-mounted ceiling detector (Ø 120 mm, height 47.5 mm). Install per DIN 14676 placement rules for residential smoke alarms. Suitable for dry indoor rooms only. This SKU is standalone — it cannot be linked by 2-wire cable or radio module.