Description GM802 serial have GM802-S and GM802-L model. The only difference between the GM802-S and GM802-L is the lens. GM802-S lens reading distance is 5-30cm. GM802-L lens reading distance is 7...View More
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GROW GM802 Series Small DC3.3V Barcode Scanner Module Board USB/TTL232 Interface 1D/2D QR Bar Code Reader PDF417 for Arduino