3548 reviews
This is the most widely known best energy monitor on the market. The Kill-A-Watt electricity monitor first came on the scene when the manufacturer published information on phantom power. When building a mining rig we don’t care about phantom power – we don’t every want our rigs turned off, so we are just concerned with power draw when mining.
Using the kill-a-watt electricity usage meter we can get a reading on how much power we are using to calculate the cost vs profit of our mining rig.
This power meter doesn’t just show you the power being used, it actually tallies the total amount used over a period. So, for example, you could start your mining rig, reset your power meter, and then check back in a week to see the total power used. Compared to the amount (and value) of ETH coins mined you can calculate your profitability.