| 摘要 |
A item checkout device and weigh plate with improved electromagnetic field performance. The item checkout device includes a housing, an electromagnetic field generator in the housing, a barcode reader in the housing, a scale assembly in the housing, and the weigh plate. The weigh plate is supported by the scale assembly and includes a non-metallic planar section located over the electromagnetic field generator and having a top surface resistant to damage and substantially transparent to an electromagnetic field from the electromagnetic field generator, and a window coplanar with the non-metallic planar section and located over the barcode reader.
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