... Office ,Home ,hotel 2.SMT design, Auto-reset 3.CE certification Red LED Flash Smoke Alarm Fire Detector1.Usage: Office ,Home ,hotel 2 ... .SMT design, Auto-reset 3.CE certificationFeatures: 1. ... chamber for early detection from all directions 9. Loud 85rib alarm signal Specifications: 1. Charging time: About 3 - 5 hours ...