DSC-WS4945 Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: DSC-WS4945 MANUFACTURER: DSC Product Details 433MHz wireless door/window contact w/normally closed external contact input, PCB antenna, case and wall tamper. English/French/Spanish installations ... Product Details Back Product Details433MHz wireless door/window contact w/normally closed external contact input, PCB antenna, case and wall tamper. English/French/Spanish installations instructions.