Re: [GUIDE] Want to measure power usage but don't have a Kill-A-Watt or multimeter?
They have devices that read the glass bubble for you and calculate power usage as well.
http://www.mymeterstore.com/p3982/power_cost_monitor.php
According to that page, the Blueline Innovations 28000 is now discontinued though.
The listed price is 20 USD or so, so it would be on par with a watt-meter. Since it's discontinued, you can only safely measure your consumption by using a dedicated watt-meter or looking at your electric meter.http://www.mymeterstore.com/p3982/power_cost_monitor.php
According to that page, the Blueline Innovations 28000 is now discontinued though.
Other unsafe methods involve using an amp-meter on your power cable (unsafe and costly) or an induction amp-meter (possibly unsafe and costlier). Personally I have this:
