IoTaWatt is an open source/open hardware electricity monitor. This site is a store where you can buy a commercially manufactured and tested IoTaWatt Energy Monitor and accessories. Read the about section for more information about IoTaWatt. Click the IoTaWatt Kits tab above to shop for a complete IoTaWatt Kit. Click on Current Transformers or Power Supplies to shop for those items. Add your items to the shopping cart and checkout.

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