There is one screw under the s/n sticker
That post retains the two halves of the cutter housing. The screw to remove it is located underneath the paper label on the bottom half of the assembly. You would have to carefully peel back the label to see the screw. I discovered this too late when trying to disassemble my shredder.
I have one of this model. You can see 6 holes with screws in them. The 7th hole is under the serial number paper tag near where you see a deformity of the plastic. I have not taken it apart & I don't know if the sensor is adjustable.
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