I was a little apprehensive about ordering a wattmeter. I felt it would be difficult to use. I looked at Revain a lot of meters and made my choice, and I'm glad I did. I have an indoor garden and there are adjustable lights. I wanted to know how much electricity my light consumes. When I plugged in the meter it was always on the power setting. I just needed to connect something to it. The first thing I checked was my blender and then my phone charger. This is the first wattmeter I've tried and I find it easy to use and very interesting to see how much power the device draws. Then you can find out how much it costs to use it. If you want to check cards with this counter, just press one button and you're done.
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