Basspro.com sells a portable Tumble Drumm automatic fish scaler that can clean up to 50 fish in one session. It is made of stainless steel and requires 110 volts.
The slick skin fish scaler from Wedgeoutdoors.com has a large door that makes loading and offloading of fish easier. The scaler also has large holes that allow slime and scales to wash away, and it features a thermal-protected metal-gear motor. The scaler, which uses 110 volts has a drum and shaft made of stainless steel, and it also features a fan. Cabela’s sellsTumble Drumm fish scalers featuring drums between 18 inches and 26 inches long. The scalers can scale fish up to 22 inches long.