barcode slotThe Unitech MS146 barcode slot reader is a flexible, cost effective solution when reliability is essential. With a resolution of up to 6 mils (0.15 mm), the MS146 is capable of readingBarcode Slot Readers. Refine by Clear filters. Refine results by. In Stock . Yes (1) Price . £100 - £350 (1) Manufacturer . Unitech (1) Ingress Protection Rating . IP54 (1) Discontinued . Reset.