I've had a Rapala digital scale for years. I used to use it when salmon fishing the tournies.
If the fish wasn't large enough to enter for prizes, it went back right away.
I didn't agree with lifting a fish vertically that may be released, but did what I had to to participate in the tourny. Weighing the fish in a cradle would be better, but I never had a cradle, so did the best I could with what I had.
It works very well and is accurate, but if you bang it around or keep putting heavy weight on it,
it could be off a few ounces. I found that it was off by 2 to 4 ounces on a 30lb, salmon. Not bad.
Had it replaced and the new one I have has hardly been used.