Does anybody know of a decent quality scale (or balance) that is available with an analog output?

Prefer 4-20mA, voltage is OK too.

0 to 2000 grams or
0 to 4000 grams
accuracy to .1 of a gram


IP68 rating if possible, live (sedated) fish will be weighed so it will get wet.

I am currently using one with a serial output, (OHAUS SCOUT PRO) which is OK, but it is not anywhere near water resistant enough to last.
Thanks