Trek 605A high voltage power supply

Output Voltage Range: +/-1KV (Fixed & Variable)
Output Current Range (mA): 0 to ± 1
Output Voltage DC Accuracy: 0.1% (Fixed and variable)
Offset Voltage / Zero Offset Voltage: < 500 mV
Output Noise (mV): < 10 rms
Operating Temperature Range (°C): 0 to 40 °C

Datasheet