ECO-TX-E231(0)No Reviews yet Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: ECO-TX-E231 MANUFACTURER: Ecolink Product Details Door/Window Sensor With External Contact Input, 319.5MHz Product Details Back Product DetailsDoor/Window Sensor With External Contact Input, 319.5MHz Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review