The SA9607 family is characterized by its ability to measure live and neutral power consumption simultaneously. A correctly installed meter should measure equal amounts of power consumption in the live and neutral phases. During meter tampering the two measurements are no longer equal. The SA9607 will use the larger of the two currents for the energy measurement. Differences of more than 12% between the live and neutral power measurements are indicated on the SA9607's ELT output which can drive a LED directly.