Right product, right price more than perfect, works fine, but small dimensions of the problem. The dimensions shown are those of the packing box, 22.5 cm x14.5 cm x 5 cm. The actual dimensions of the weather station are 14.7 cm x 11 cm x 4.5 cm therefore much smaller. Please note we can not fix it to the wall, just place it on a piece of furniture. Operates at 433 MHz, attention to interference with other stations, but affords 3 outdoor transmitters. Easily programmable to recommend.