Unbranded High Voltage Differential Probe - With Power Supply

This Unbranded High Voltage Differential Probe has been been tested to power on only, but no further. Cosmetically this unit has some minor marks and scratches.
With power adaptor supplied.

Suitable for high common-mode voltage measurement applications up to ±7000V. It can be used with a signal speed of up to 70Hz. This differential probe extends the functionality of standard single-ended input oscilloscopes to allow a safe and accurate method of making high voltage differential measurements.
By selecting attenuation ratio 1:100, this oscilloscope probe can measure signals below 70V to get higher resolution and less noise. Otherwise, set the attenuation to 1:1000.
Features and Benefits:
Bandwidth is DC to 70MHz (–3dB)
Attenuation ratio is 100:1/1000:1
Accuracy is ±2%
Input impedance is 10Mohm ll10pF each side to ground
Differential range is (100:1) ±700V (DC + peak AC) or 700VRMS
Maximum differential is (1000:1) ±7000V (DC + peak AC) or 5000VRMS
Common mode range is ±7000V (DC + peak AC) or 2500VRMS (100:1 & 1000:1)
Absolute maximum voltage is ±7000V (DC + peak AC) or 2500VRMS (100:1 & 1000:1)
Absolute maximum voltage is (differential mode) ±7000V (DC + peak AC) or
5000VRMS (100:1 & 1000:1)
Swing is ±7V into 50kohm load
Offset (typical) is <±5mV
Noise (typical) is 0.9mVRMS
Source impedance is (typical) 50ohm
CMRR (typical) is 80dB at 6Hz and 50dB at 1MHz
Ambient operating temperature ranges between -10°C and 40°C
Power requirement 4xAA cells or 6VDC/200mA mains adaptor or regulated 9VDC/120mA mains adaptor.