CT4192: Active Differential Probe 70 MHz 10x/100x, ±70 V/±700 V

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The CT4192 is a differential probe with a very high input impedance and low input capacitance. With a 70 MHz bandwidth, this probe is great for working on a wide variety of measurements ranging up to ±700 V. The addition of an offset adjustment tool will give you the extra confidence that your measurements are accurate. The CT4192 is compatible with oscilloscopes from all major manufacturers.


  • Meets IEC 61010-031 safety standard
  • Up to ±700 V differential
  • 70 MHz bandwidth (-3 dB)
  • Selectable attenuation settings of 10x/100x
  • High accuracy (±1%)
  • Protective rubber boot
  • Optional power adapter (CT3723)
  • (2) Hook probes, black & red, (CT2827-#)
  • (4) AA batteries
  • Offset adjustment tool

Electrical Characteristics
Bandwidth (-3dB) 70 MHz
Rise Time (probe only) 5 ns
Attenuation ratio 10x/100x
Accuracy ±1%
Input Voltage:  
Differential Input Voltage (DC + AC peak) ±70 V
Common Mode Input Voltage (DC + AC peak) ±700 V
Absolute Maximum Rated Input Voltage (each side to ground) 1000 Vrms Cat II
Input Impedance 4 MΩ // 5.5 pF 
Output Voltage:  
Swing ±7 V (driving 1 MΩ oscilloscope input)
Offset (typical) ±5 mV (adjustable)
Noise (typical) 2 mVrms
Source Impedance (Typ.) 50 Ω
Safety Specifications IEC 61010-031 CAT II
Mechanical Characteristics
Weight 400 g
Dimensions 170 x 63 x 21 mm
BNC Cable Length 95 cm
Input Leads Length 45 cm
Environmental Characteristics
Operating Temp/Humidity -10°C to 40°C / Up to 85% RH
Storage Temp/Humidity -30°C to 70°C / Up to 85% RH
Pollution Degree Pollution Degree 2
Altitude Operating: 3,000 m 
Nonoperating: 15,300 m
Video List:
Model # MSRP (ea.) Where to Buy
CT4192 $795.00