Apparatus for determining optimum hay baling conditions

摘要

An alarm device for indicating the optimum humidity conditions for baling of hay is disclosed which comprises a humidity sensing device with its normally closed switch in circuit between an electrical power source and an audible alarm. The device is mounted at a location where it is responsive to the ambient atmospheric, i.e., outside, air humidity and is set to trigger the alarm when the air humidity reaches a value of at least about 55 percent. This indicates an optimum condition for baling since at this outside humidity the hay absorbs sufficient moisture that it is not defoliated when baled.