Methods, devices and systems for reordering an inventory item are provided herein. The device comprises a memory, a processor, and may comprise a sensor and/or a programming interface. The device receives and indication that an event occurred indicating that the inventory item has been used. The indication is received through a transceiver or through a sensor. The user programs a trigger threshold, and may program the device with a weighting factor for the triggering events or allow the device to calculate a weighting factor. The device automatically sends a signal when the number of triggering events calculated based on the weighting factor equals the trigger threshold. The indication may automatically reorder the inventory item or may send a message to the user requesting additional instructions.