Smoke Detector ABUS RM40

The ABUS RM40 is a wireless photoelectric smoke detector powered by a 9V lithium battery. Designed for residential and commercial indoor use, it senses smoke particles using a photoelectric sensor and triggers an audible alarm to alert occupants. The detector’s compact dimensions (approximately 10.2 cm diameter and 35 mm height) allow discreet ceiling or wall mounting while maintaining broad coverage for early warning of smouldering fires and slow-developing smoke sources.

Advantages

The RM40 uses photoelectric detection technology which is particularly effective at identifying smouldering fires and low-flame combustion that produce larger smoke particles. Battery operation and wireless design simplify installation since no mains wiring is required, allowing flexible placement and easy relocation. The lithium 9V battery provides extended operating life and stable performance over time. The unit’s compact form factor and neutral finish integrate unobtrusively into most interiors.

Suitable for

• Homes (bedrooms, living rooms, hallways)
• Small offices and workplace rooms
• Rental properties and apartments where wiring access is limited
• Garages, storage rooms and service areas with indoor ceilings

Key specifications

• Detection principle: photoelectric (optical) smoke sensing
• Power source: 9V lithium battery
• Mounting: ceiling or wall surface mount
• Dimensions: diameter approx. 10.2 cm, height approx. 35 mm
• Alarm output: built-in audible alarm for local alerting
• Wireless: battery-powered standalone operation without hardwiring
• Typical coverage: suitable for standard room sizes when installed according to guidance

How to use

Install the ABUS RM40 on a ceiling or high on a wall following the manufacturer’s spacing recommendations for effective coverage. Fix the mounting base with appropriate screws and inserts for the surface material, attach the detector and insert the 9V lithium battery as indicated. After installation, perform a functional test using the detector’s test button to verify the alarm and battery condition. Regularly check the unit for dust accumulation and ensure the battery is replaced before its end of life to maintain reliable operation.

Usage recommendations

Place the detector at least in every sleeping area and on each storey of a dwelling for comprehensive protection. Avoid installing detectors near ventilation outlets, windows, or areas with frequent dust, steam, or cooking fumes which can cause false alarms. Follow local regulations and the manufacturer’s installation distances and testing intervals to ensure optimal performance.