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1:1 / 1:10 Differential Probe for Oscilloscopes, 10/50MHz, 120V US$279.00

EA132
1:1 / 1:10 Differential Probe for Oscilloscopes, 10/50MHz, 120V


  • Switchable Attenuation 1:1 / 1:10
  • Gain error less than 1%
  • Operating common mode voltage range: 120V
  • Maximum input voltage: 500V
  • Powered from 9V battery or external supply
  • Compatible with all standard oscilloscopes
  • The EA132 Differential Probe is an auxiliary device for any standard oscilloscope. It can be connected to any measuring channel and it is powered directly from a 9V battery or from a wall adapter (9-16V DC, 1200mW). A European wall adapter is included. You can order a U.S. power supply from our options below.

    It has a BNC cable for connecting to your measuring device. The input resistance of your device should be higher than 20 kΩ, and its input capacity should be lower than 30 pF. When an oscilloscope is the measuring device, switch the input to the 1 MΩ mode.

    This probe's input terminals are 4mm protected banana plugs.

    A unique feature of the EA132 probe is the exceptionally high operating common mode voltage together with a 1:1 attenuation. Thanks to these features, it is possible to measure differential voltages of tens of millivolts amplitude while common mode voltage is up to 120V.

    The box measures 175 61 23 mm.

    Differential Probe Features

    • Cable length: 44 cm
    • Attenuation: 1:1 / 1:10 switchable
    • Bandwidth: 10 / 50 MHz
    • Max. voltage: 500V
    • Input resistance: 10 MΩ
    • Input capacitance: 2 pF
    • Compensation range: 15 to 30 pF

    Performance Characteristics
    Number of channels1
    Type of inputDifferential
    Gain1 (1:1) or 0.1 (1:10) switchable
    Frequency range at 1:10 (-3dB)0 to 60 MHz
    Frequency range at 1:1 (-3dB)0 to 10 MHz
    Gain error at 20 C (f < 100 Hz, Rload > 500 kΩ)< 1%
    Gain versus temperature< 0.01% / C
    Initial offset< 2 mV
    Noise at 1:10< 500 Vrms
    Noise at 1:1< 1500 Vrms
    Common mode rejection at 1:1 (DC)> 100 dB (< 10 V/V)
    Common mode rejection at 1:1 (f < 100 Hz)> 70 dB (< 316 V/V)
    Common mode rejection at 1:10 (DC)> 120 dB (1 V/V)
    Common mode rejection at 1:10 (f < 100 Hz)> 90 dB (< 31.6 V/V)
    Differential input resistance10 MΩ
    Differential input capacity2 pF
    Input resistance to output ground5 MΩ
    Output resistance120 Ω
    Output load resistance> 20 kΩ
    Output load capacity< 30 pF
    Differential operating input voltage rage for att. 1:1-12V to +12V
    Differential operating input voltage rage for att. 1:10-120V to +120V (f < 3 MHz)
    Operating common mode voltage range (to output GND)-120V to +120V (f < 3 MHz)
    Maximum non-destructive voltage of any input (to output GND)-500V to +500V (f < 350 kHz)
    Maximum non-destructive differential voltage-1000V to +1000V (f < 350 kHz)
    Supply power from battery< 1W
    Supply power from power adapter< 1.3W
    Voltage range of power adapter input9V to 16V DC
    BNC cable lengthapprox. 440 mm
    Dimensions175 61 23 mm

    Measurements were made 15 minutes after power-on. The differential voltage input and common mode rejection ranges depend on the frequency.


    This product was added to our catalog on Friday 04 April, 2014.

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