SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Chimes 5 Volume Level with LED Indicators,Door Alarm for Home Store Office

SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Chimes 5 Volume Level with LED Indicators,Door Alarm for Home Store Office Security When Opens,1 UK Plug-in Receiver 2 Sensors