3 Year Battery Smoke Ala

farm security system direct from Wanlin Fire Protection — 12-year factory experience, WL-WL300 fully certified CE/FCC/RoHS. Key specs: Zigbee 3.0/WiFi wireless, 3s alert push via APP Push + Audible 75dB, 2-year CR2032

advanced home security systems direct from Wanlin Fire Protection — 12-year factory experience, WL-WL300 fully certified CE/FCC/RoHS. Key specs: Zigbee 3.0/WiFi wireless, 3s alert push via APP Push + Audible 75dB, 2-year CR2032