Id avoid the berkley, I have one that reads different every time I turn it on. First time I weighted a fish, which I knew was over five it read 4.6, I took it home put a 5lb plate on the end it read 4.4 So I took off the plate and turned off the scale, and turned it back on put the plate on again and it was 4.6. I kept trying different weights, and not once was it off by a consistent amount. I might try putting some new batteries in it and see if that helps.