Product introduction: Woking voltage:3.0V(2pcs Alkaline batteries) Stanby current: Product Features 【Door & Window open Alarm】The magnetic door window alarm sensor emits a strong 130dB alarm when the door is
Product introduction: Woking voltage:3.0V(2pcs Alkaline batteries) Stanby current: Product Features 【Door & Window open Alarm】The magnetic door window alarm sensor emits a strong 120dB alarm when the door is