Elro Blue Line CBFS25 Rook detector 4-pack

The ELRO Blue Line CBFS25 smoke detector in a 4-pack offers reliable fire detection for residential areas. These battery-operated smoke detectors feature an 85 dB alarm signal that ensures clear audibility throughout the house. Each unit operates with a 10-year battery life, eliminating the need for battery replacements during this period. Installation is simplified with the included magnetic mounting strips, which can be attached to ceilings without drilling. The detectors measure approximately 10 cm in diameter and 4 cm in height, with a lightweight design of about 150 grams per unit. This non-networkable system operates independently without smart home integration or app connectivity. The optical smoke detection technology effectively responds to visible smoke particles. Recommended placement includes hallways on every floor and sleeping areas such as bedrooms. The white plastic housing features a test button for regular functionality checks. These detectors comply with European safety standards for residential smoke detectors. The magnetic mounting system allows for temporary removal during cleaning or maintenance. The low battery warning signal alerts when replacement is necessary after the 10-year operating period. Each detector includes a mounting plate and adhesive strips for secure ceiling attachment. The simple design focuses on essential fire detection functionality without complex programming requirements. This 4-unit package provides comprehensive coverage for typical apartment layouts.