motion sensor chime,sensor alarm,sensor doorbell,door chime,message recordable,battery operated,factory offer, ... nice price quality motion sensor chime,sensor alarm,sensor doorbell,door chime,message recordable,battery operated,factory offer ... :Sensor Distance:3-6M;Sensor Detecting Angle: 10 degrees for Light Sensor;Ring Tone:Recordable for 6 seconds;Recording time can ...