The LOGIFIRE series 41RML100 detector is a multi-criteria detector that combines the detection technologies of an A1R class rate-of-rise sensor with those of an optical Tyndall-effect smoke detector. The sensor is also fitted with a built-in isolator. Microprocessor-controlled digital signal analysis. Contamination level auto-compensation and maintenance indication. Programmable sensitivity across three levels. Operating class A1R. Quick cleaning of the sensor chamber thanks to the intuitive disconnection of the components. Evolved design suitable for any type of installation, even in the most aesthetically demanding situations. High-visibility light indications. Automatic addressing or with programmer. Approved to EN 54-5, EN 54-7 and EN 54-17.