VEVOR Digital Shipping Scale, 440 lbs x 1.7 oz. Heavy Duty Postal Scale with Timer, Tare Function, HD LCD Screen Portable Package Scale for Luggage, Home, Post Office, AC/DC Powered, FCC Listed

This product does not have OIML R76 certification.

Yes, the unit of measurement can be easily switched between kg, lb, and lb:oz according to the product description.

The product description doesn't mention anything about the visibility of the display in bright lighting conditions. However, it does mention that the scale has a "HD LCD Screen" which suggests that it is visible, although brightness conditions are not specified.

Yes, according to the product description, it is capable of taring/zeroing the weight. The scale comes with a convenient tare function to make weighing easier.

While customer reviews don't specifically mention visibility in bright lighting, they generally praise the scale's LCD screen. Customers appreciate that the screen detaches from the scale itself, allowing them to place it wherever is most convenient for viewing.