can you make a 240 and 460 volt version of the tweet-a-watt ?

Hello, I was wondering if it wold be possible to make a 240 and 460 volt version of a tweet-a-watt or something equivalent to a tweet a watt to monitor the electrical usage on freezers at my father's brewery ? any advice would be great on how to tackle this.

The tweet a watt device is monitoring current. There are current sensors available for a variety of voltages. Google current sensors to see if there is one that goes to 460 (240 is easy since that is common voltage in many places).

alright great ! Thanks !