Denso BHT-1400-CE Series Hardware User Manual page 38

Clean dirty labels before reading.
− Notes −

The BHT may have difficulty reading codes in direct sunlight.

If the code is on a curved surface, read the barcode at the center of the illumination light.

If the barcode reading window is too far away from the barcode, the readable range will become

narrower than the illumination light range.
Barcode/2D Code Handy Terminal
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