The HVT-4000U3S/AV3 from Yuanxing Electronics is a Voltage Transducer with Accuracy 0.01, Input Voltage 4000 to 4800 V, Output Voltage 1 to 10 V, Supply Voltage ±12, Temperature Operating Range -25 to 85 Degree C. Tags: DIN Rail Mount, DC Voltage Transducer. More details for HVT-4000U3S/AV3 can be seen below.