700924 Differential Probe 1400V / 100 MHz (DISCONTINUED) (DISCONTINUED)

Notice: This product was discontinued on Jan 18, 2021. See this replacement product:

The 700924 high voltage differential probe is an active voltage probe with high speed capabilities for measuring floating and high-speed differential signals in combination with single-ended input oscilloscopes. This differential voltage probe's attenuation ratio is switchable between 100:1 and 1000:1.



DC to 100 MHz




Max. Input Voltage
:(to ground)


±1400 V (DC + ACpeak) or 1000 Vrms CAT III

Max. Differential Voltage


±1400 V (DC + ACpeak) at 1000:1 attenuation
±350 V (DC + ACpeak) at 100:1 attenuation

Probe Power


Internal battery or probe power supply

B9852MJ power cable is sold separately
Work with Oscilloscopes, ScopeCorders

700924 Differential Voltage Probe 

  • Capable of Wide-Band, High-Voltage Floating Measurements
  • Allows you to use a single-end input oscilloscope for wide-band differential input measurements
  • Connect the probe to the input of a single-end input digital oscilloscope
  • Two or more differential probes can be connected to measure signals with different ground levels on each channel 

Applicable for all Digital Oscilloscopes or ScopeCorders.

With increases in the speed of measured signals in recent years, it has become necessary to make floating measurements over a wide frequency band. The 700924 differential probe lets you make wide-band (100 MHz) differential input measurements by just connecting the probe to the input of a single-end input digital oscilloscope.

Oscilloscope input amplifiers are normally single-ended. They do not provide accurate measurements when used in combination with a 10:1 passive probe for measuring the gate-to-source voltage of a switching power supply, or potential difference with a common mode voltage in elements such as Insulated Gate Bipolar Transistors (IGBTs).

Furthermore, there is a risk that current will enter through the oscilloscope ground line and damage the oscilloscope.



Input type Balanced differential input
Frequency band DC up to 100 MHz (-3 dB)
Input attenuation ratio Switched between 1/100 and 1/1000
Input impedance Approximately 4 MΩ, approximately 10 pF parallel
Gain accuracy ±2% (common mode voltage: 400 V or less)
±3% (common mode voltage: 1000 V or less)
Maximum allowed
differential voltage
±350 V (DC + ACpeak) or 250 Vrms (1/100 range)
±1400 V (DC + ACpeak) or 1000 Vrms (1/1000 range)
Maximum common mode
input voltage
±1400 V (DC + ACpeak) or 1000 Vrms (both 1/100 and 1/1000 ranges)
Maximum input voltage ±1400 V (DC + ACpeak) or 1000 Vrms (1/1000 range)
Common Mode Rejection Ratio (CMRR) -80 dB (60 Hz), -50 dB (1 MHz)
Output voltage ±3.5 V
Output impedance Used with 1 MΩ input impedance
Power supplies Dry cells, four R6P (SUM-3); when using the AC/DC adapter, use an output voltage of 6 V/200 mA or greater/center plus
Dry cell life Approximately 2 hours under continuous use
External dimensions (approximate) 207 mm x 83 mm x 38 mm¹
Total length Approximately 1.5 meters
Weight Approximately 800 grams (excluding dry cells)
Approved standards EMC: EN55011: 1991 + A1: 1997 + A2: 1996
EN50082-1: 1992
Safety: EN61010-1: 1993 + A2: 1995
EN61010-2-031: 1994

¹: 38 mm is listed as the maximum value.
Note: Dry cells and AC/DC adapter not included.

Model and Code

Model Name Code Description
Differential probe 700924 DC to 100 MHz band

Each 700924 differential probe comes standard with red and black pincher tips (one each).

Instruction Manuals

Looking for more information on our people, technology and solutions?

Contact Us

Precision Making