barcode slotBarcode Slot Reader, IDTech Omni Barcode Reader, Heavy Duty, RS-232 interface, visible red, sealed construction Color: Black. MSRP: $215.88 Price: $120.68. Add To Cart . In Stock.MS146 Barcode Slot Reader. The MS146 bar code slot reader applies for time control, security access, or attendance control applications with pre-printed forms and scanning cards or