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| Watt Meter / Kill-A-Watt alternative |
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| Gyro:
--- Quote from: Veteran68 on December 23, 2023, 11:51:25 pm ---I have a Kill-a-Watt but have always been interested in the Hopi power meter that Big Clive uses. This thread reminded me to put one in my AliExpress cart for my next order. --- End quote --- The HOPI (HP-9800, to give it its searchable name) needs a little work to make it safe but has decent accuracy. Here's a teardown/improvement that I did recently. Notice that the recent versions don't have the tiny little internal mains fuse... https://www.eevblog.com/forum/testgear/hopi-hp-9800-power-meter-(recent)-differences-and-safety-improvements/ |
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