The title compound. [Cu2(NO3)2(OH)2(C12H8N4O)2(H2O)2]n. consists of a neutral polymeric CuII complex in which each CuII atom has a distorted octahedral geometry defined by a pyridyl N atom from a 3-(pyridin-3-yl)-5-(pyridin-4-yl)-1. 2. https://lockdownsecuritycanada.shop/product-category/tilt-switch/