Delivery Initial display error was large (+ 4 ° C to + 5 ° C), so it was treated as "inspection / repair", but the situation does not change even if it returns. The contents of "inspection / repair" is not described at all in the return slip. Although it should be a product of "error + -1 ° C", at 30 ° C at room temperature 25 ° C, it was purchased for checking the temperature of the living room, but this is impossible. The range of change is narrow enough that it can not be thought that the humidity display properly responds to changes in the weather. I should have chosen one made in Japan. (This is China) It is a pity.