Heiman Photoelectric Wireless Interconnected Smoke Alarm Detector ,10-Year Battery Smoke Detector,fire alarm with LED Indicator & Silence Button, Conforms to EN14604 Standard (3-PACK)
Precision and Fast:Advance Optical Photoelectric sensor and chipset,multi-sensor rapidly detects fast flaming and slow smouldering fires. Can detects dangerous smoke concentrations in seconds with fewer false alarms 10-year service life & Large Detection Range:The Smoke detector can detect smoke in a wide detection range of 30-40 m2,can las voces 85 dB alarm tone.10 year long life operation smoke alarm(No need...