This is a military surplus unit.
This 80K-6 is a high voltage probe designed to extend the voltage measuring capability of an ac/dc voltmeter to 6000 volts. A 1000:1 voltage divider provides the probe with a high input impedance. The divider also provides high accuracy when used with a voltmeter having a 10 megohm input impedance. A molded plastic body houses the divider and protects the user from the voltage being measured. SPECIFICATIONS: The 80K-6 will achieve rated accuracy when it is used with an ac/dc voltmeter having 0.25% accuracy, or better, and an input impedance of 10 megohms 10%. Specifications for the probe are as follows: Voltage Range: 0 to 6 kV, dc or peak ac Input Impedance: 75 megohms nominal Division Ratio: 1000:1 Accuracy DC to 500 Hz: 1% 500 Hz to 1kHZ: 2% Above 1 kHz: Output reading falls. Typically, 30% at 10 kHz.