Đầu báo khói ZKTeco NG-SD10 – Wi-Fi Smoke Detector – Detecting Range: 20m2 – Alarm Sound Level: 90dB / 1m – Installation Method: Ceiling mounted – Wireless Protocol: 802.11 b/g/n 2.4GHz Wi-Fi – Battery Type: 2 * LR03 – Working Temperature: -10 ~ 50°C – Dimensions (W*L*D): 90*90*40 mm – Bảo hành: 12 tháng.   Vu Baosmnet.vn