Measuring mains current consumption

Hi everyone,

I am looking for suggestion on how to best measure current consumption of mains with my arduino(230V, I'd say 30-50A max).e.g a dehumidifier .

I would like to buy ideally a module I can interface with and read the output, something like this, but that doesn't cost more than 30 dollars top.

http://cache-m1.smarthome.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/9/0/9034big.jpg

Anyone is aware of any module that can be easily interfaced with arduino? or how can it be easily achieved?

Appreciate your help!

50 A CURRENT SENSOR for arduino

see doc link DOCUMENTATION

Ultra-low power loss: 100 μΩ internal conductor resistance ▪ Galvanic isolation allows use in economical, high-side current sensing in high voltage systems ▪ 3.0 to 5.5 V, single supply operation

(scroll down to the DOCUMENTATION zip file link at the bottom)

Wow that looks good indeed..

I will post once i get it :)