WBV412H29(0-10V Output AC Voltage Sensor) uses a special isolation module to measure the AC voltage in the grid and circuit in real time and convert it to 0~5V, 0~10V or 1V~5V DC voltage (Uz) output.
http://www.wbsensor.com/voltage-sensor/ac-voltage-sensor/0-10v-output-ac-voltage-transducer.html