Teletek SensoIRIS M140 Addressable Multi-Sensor Detector

The Teletek SensoIRIS M140 (and its isolator variant SensoIRIS M140 IS) is an intelligent addressable combined optical and thermal detector engineered by Teletek Electronics for commercial, industrial, and institutional fire alarm installations. By integrating an optical photoelectric smoke chamber with a precision thermal thermistor sensor within a low-profile housing, the device evaluates both smoke concentration and temperature changes. This multi-criteria sensing design enables immediate verification of fast-flaming fires and smoldering smoke while delivering high immunity to environmental false alarms. Operating on Teletek’s proprietary TTE communication protocol over a 15V to 30V DC loop, the detector allows panel-selectable operating modes (High, Normal, Middle, Low sensitivity settings for smoke and heat). It features software addressing via a programming tool, dynamic drift compensation, twin 360-degree LED status indicators, optional built-in short-circuit isolation, and full EN 54 certification.