This is operation and service manual for the Rohde & Schwarz probes: DC Probe URV5-Z1 395.0512.02 RF Probe URV5-Z7 395.2615.02 395.2615.03 10 V Insertion Unit URV5-Z2 395.1019.04 395.1019.55 395.1019.56 100 V Insertion Unit URV5-Z4 395.1619.04 395.1619.55 395.1619.56 395.1619.76 It is also usable for the MIL equivalent devices: URY-Z1 URY-Z7 URY-Z2 URY-Z4 The manual includes operating instructions, calibration/verification, schematics, parts lists. The probes can be used in combination with the voltmeters or powermeters like URV5, URY, URV35, URV55, NRV, URVD, NRVD and various others.