Check the listing for details. HP - Agilent - Keysight 1157A Active Probe, 2.5 GHz US41005227. Condition: For parts or not working. Listed at 2094.75 USD. HP - Agilent - Keysight 1157A Active Probe, 2.5 GHz US41005227ItemMake: Agilent/KeysightModel: 1157A Options: Item Specifics/Condition SOLD AS-IS / UNTESTED, Unit Is In Good Cosmetic Condition, Minor Wear and Tear Description Description The Agilent 1156A, 1157A, and 1158A family of active probes offers R & D engineers the performance they need to probe small geometries in hard-to-reach areas on the DUT. These probes were designed specifically for the Infiniium Series, and InfiniiVision 5000, 6000, and 7000 Series oscilloscopes (except for 6000 Series 100MHz models). As the speeds in your design increase, you may notice more overshoot, ringing, and other anomalies when connecting an oscilloscope probe. Probes form a resonant circuit where they connect to the device. If this resonance is within the bandwidth of the oscilloscope probe you are using, it will be difficult to determine if the measurement anomalies are due to your circuit or the probe. Features: 2.5 GHz bandwidth The small size makes probing easier 100 k-ohm, 0.8 pF, non-resonant input impedance +/- 15 V offset 5 V peak-to-peak dynamic range; for waveforms with edges >3nsec, dynamic range is >12Vpp Accessories designed for minimal loading on your device and optimum response AutoProbe interface compatible Images Term of sale Included Items: This sale does not include probes, cables, manuals, power cords or any other accessories unless otherwise stated or pictured.