A monoazo reactive red dyestuff of the formula, 1wherein the R1, R2, R3, X, D, Z and n are as defined in the description. Dummy interconnections are disposed also in a scribing area. The cap layer and a photoresist layer are each formed over the photopatternable layer. Thus, the average air temperature of a region may be known for several years, along with other inputs including water temperature, wind speed, and other data. An external power source has an external housing.