Unitech MS146-IUCB0M-SG MS146 Credit Card Reader - USB interface and Water-Resistance Part Number: MS146-IUCB0M-SG Type: Barcode Reader Interface: USB Color: Black Read Speed: Scan Speed: 2.0 - 30 per second Light Source: Infrared: 930nm LED Humidity: 0% to 95% RH non-condensing Operating Temperature: 0 to 50 degrees Celsius