The Metrologic MK5145. Eclipse is a single-line, handheld laser scanner. Equipped with Metrologic’s patented CodeGate, the MS5145 Eclipse can be used in a wide variety of applications. CodeGate allows the user to easily target the desired barcode and complete the data transmission with a simple press of a button. This combination makes the Metrologic MS5145 Eclipse a perfect selection for menu scanning, point-of-sale, document processing and inventory control.