Customer Service Hotline:
+8613261677119
+8613261677119
low battery alert direct from Wanlin Fire Protection — 12-year factory experience, WL-HK600 fully certified CE/FCC/RoHS. Key specs: 4G/WiFi/Zigbee Hub wireless, 5s alert push via APP/SMS/Call/Email/Siren, AC Hub + Battery Sensors