Low cost weight sensor ?

Hi,

I am looking for a low cost weight sensor. I am trying to provide a
indication of the amount of paper available. The empty container is
approx. 1kg, and approx. 10kg full of paper. It should be able to
handle industrial temperature range. A resolution of 1kg would be
acceptable. If I can get 100g resolution, it would be great.
I would prefer SPI or I2C interface, but analog out would be
acceptable - something that can directly interface with a MCU.

Regards
Anton Erasmus
.

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