Abstract: An entry control device for limiting grain bin entry to permitted users includes a frame, to which an outer door and an inner door are hingedly attached. The frame is mountable to a grain bin so that the frame is positioned over an opening in the grain bin. The outer door selectively closes the opening, while the inner door selectively prevents of entry into the grain bin through the opening. An entry controller, which is attached to the frame, comprises a microprocessor, to which are operationally engaged a power module, a transceiver, and an actuatable lock. The actuatable lock is selectively engageable to the inner door. The transceiver receives an access approval signal from an electronic device of a manager, enabling the microprocessor to selectively actuate the actuatable lock to unlock the inner door, thereby allowing entry of a user into the grain bin.