Smoke Detector Photoelectric IvoryThe Hochiki ALN EN Photoelectric Smoke Detector is a high performance, addressable smoke sensor designed for advanced fire detection. Fully compatible with Hochiki's ESP Analogue Addressable Protocol, the ALN EN is a direct upgrade from the ALG EN and fits the same bases. With a newly engineered high performance chamber, it eliminates the need for ionisation sensors in most environments. Enhanced with a unique baffle design, the ALN EN maximises smoke