Metrologic MS9540 Handheld Barcode Hand Scanner Handscanner Reader - Black - USB

MS9540 Product Specifications. MS9540 OPERATIONAL. MS9540 ELECTRICAL. Beeper Operation 7 tones or no beep. System Interfaces USB. Indicators (LED) Red = Good read / Green = Laser on, ready to scan / Yellow = CodeGate active (off); auto-trigger mode (on).

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