https://www.controleverything.com/products?f=field_assigned_categories%3A6085&f=field_assigned_categories%3A6601 this is a current monitoring board, so with this board it is possible to read current and keep a track on energy uses. it comes with a particle photon, electron and i2c adapter. so it can be used with Pi, arduino or with any other master controller. Solid Core Current Sensors with 5% Max Error Rate.
Exceeding 70 Amps through the core sensor may damage the on-board CPU. For best accuracy, its highly recommend choosing a controller with the lowest possible amperage rating required for your application. This device is designed for AC current measurement only and cannot be used to monitor DC loads. This device is typically more accurate than commercially available clamp meters and nearly as accurate as most direct w