myenergi harvi Energy Harvesting Wireless Sensor. Small and wall-mountable, the ‘harvi’ wireless power sensor, allows both the ‘zappi’ and ‘eddi’ to measure the grid and/or generation power, without the need for a wired current transformer (CT).. All this is done using harvested energy from the sensor, which in turn, transmits the import/export information to the load controlling devices without the need for any batteries or electrical wiring.. Key Features:. Wireless Power Sensor. Energy harvesting – No batteries or electrical wiring required. Fast, accurate and wall mountable. Uses CT supplied with Eddi and Zappi products. 3 CT inputs for 3-phase supplies. Grid/ Generation/ Storage measurement. Specifications. Brand. myenergi. SKU. MYEN-HARVI-65A3P. Product Type. Sensor. Dimensions (WxHxD)mm. 98 x 98 x 36. Weight (kg). 0.2