Hammond 1593 Series Instrument Enclosures – Hammond 1593DTBU, Hand-held blue instrument enclosure from the Hammond 1593 series, 114mm in length, 36mm wide and 25mm high. Ergonomically designed for a comfortable fit into the user’s hand, this enclosure has a recessed top for membrane display. The unit is secured with self-tapping screws, and is ideally suited for mounting printed circuit boards. Hammond 1593DTBU Instrument Case GPABS 114 x 36 x 25mm Translucent Blue