WBV342U01-S converts pure DC input voltage into a load independent output signal DC voltage 0-5V or 0~10V. DC 10mV-1000V Input Voltage Converter has adopted modulation-demodulation isolation principle and average measurement method for real time measurement of DC voltage from power grid and circuit.
Advantages:
   Total galvanic isolation between input/output, 
   High accuracy, 
   Low drifting by temperature, 
   Wide temperature bearable range. 
http://www.wbsensor.com/voltage-sensor/dc-voltage-sensor/dc-10mv-1000v-input-voltage-converter.html