classroom smoke detector

classroom smoke detector — Wanlin Fire, Chinese smoke alarm OEM and ODM manufacturer by Wanlin Manufacturing Group, WL-SD110 10-Year Battery Photoelectric Smoke Alarm with EN 14604 certification, sealed lithium cell, 85dB alarm, and 10-year service life. Complete 9-model line: WL-SD100 EN 14604 photoelectric, WL-SD110 10-year battery, WL-SD200 UL 217 dual-se···

warehouse club smoke detector direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP200 smart fire detector certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Photoelectric Smoke Sensor + Electrochemical CO Sensor + NB-IoT Cellular Communication + Multi-Sensor Fusion, NB-IoT + IoT Cloud Platform + Dual Alarm (Smoke + CO) ···