The Auto Harvester is an automatic farming machine that will harvest all ripe crops 4 tiles wide and 10 tiles in front of itself every 6 hours. It is used in Farming Field and Vegetable Allotment and must be placed within the room "zone". Because it itself is 4x1, this results in 40 autoharvested crops per 44 tiles, which is inferior tile management compared to a cheaper Auto Scythe - the Harvester costs 10% as many tiles as it harvests, while a Scythe costs 4.17% as many tiles.
The machine requires a direct power connection but only the initial placed area (not the harvesting area). Walls and doors will block the machine, but it will roll over other objects such as crop sprinklers and drip pipe.