Huber Unistat 915w with Pilot ONEHuber Unistat 915w with Pilot ONE (Please Note: There is a 2 3 weeks lead time) Unistat Circulators are an ideal solution for fast and precise thermal control of externally connected applications. These systems offer rapid temperature change and a wide temperature range without having to change fluid. The new Pilot ONE controller features a navigation system with easily remembered icons and menus which are sorted by color to make routine work simpler.