Power meter suggestions!

[CAT-THE-FIFTH]

I have narrowed it down to three:

1.)L61AQ Power meter

The first is basically a Kill A Watt P4400 which is a rebadged Prodigit Model 2000MU.

http://l.b5z.net/i/u/6052765/i/L61AQ.pdf

2.)Energenie Power Meter

The uses a ADE7755 IC which is meant to be found in better power meters.

http://www.energenie4u.co.uk/ener007_powermeter.html

3.)Brennenstuhl EM230

ATM,I don't know which is better!