Goupchn HDP50 High Voltage Differential Active Probe 1400V 100MHz 50X/500X Attenuation Rate Oscilloscope Probe Kit with Accessories

Works better than $1000 products from Tektronix. Excellent case as well. English on the box is a bit fuddled calls it a "deferential input" X-D

This is a good, cheap 100:1 probe. Capacitance at the tip, as measured at 100kHz with an LCR meter (see photo) was 5.8 pF. Rise time when driven with an 80 ps rise-time source on a 2.5 GHz scope using a 500 MHz-bandwidth high-impedance adapter, and with the probe tip probing the pulse source using a proper probe-tip-to-BNC adapter, was 1.08 ns (see other photo), implying a bandwidth ("0.35" method) of an impressive 324 MHz. Bandwidth measured using a swept sine wave from a 500 MHz arb gen agreed reasonably well with that figure, producing about a 260 MHz 3dB bandwidth.I use this probe for probing ultra-low-power circuits where I want to minimize loading, since at DC the impedance is indeed about 100 Mohm. At higher frequencies, the impedance becomes dominated by the capacitance of the probe and of the scope, which is why the rated voltage also goes down, but that doesn't concern me for my use case. I will say that I have casually checked the performance at 1000 VDC, and nothing went boom.Overall, would buy again.

As a person who has used all manner of scope probes (Tek, HP, Agilent) for decades in a real engineering and repair environment, I can tell you that these are a pleasure to use and are well thought out. The tip hoods are unique in that they very lightly snap on which means they won’t fall off in the middle of a measurement or when the probe is clipped on and hanging…even the expensive ones don’t have snapping hoods and after a while lose the ability to hold on tightly.The tips under the hood are a little longer than most which is a good thing when the circuit point of interest is difficult to get to.The attenuation switches (X1-X10) are decisive which is often not the case with probes in this price range…..they don’t shift during gentle handling which is a big plus.The cables are soft enough that they are easy to maneuver on the bench….some probes use unusually stiff cabling and if you’ve ever had those you know what I mean.The hooks are the proper length and width to get under a component lead and the ground clips have a rubber hood covering most of it so as not to touch other areas of the circuitry. The rubber makes the ground clip a little more difficult to open but that also means it will grip tighter when released onto the chosen ground reference connection.The BNC female connector easily slides onto the scopes BNC male and locks nicely.They also come with 5 pairs of colored rings for probe ID which is nice in the event you buy 2 pairs for a 4 channel scope.We’ll worth the purchase price.My only negative, and it is very minor, but I’ve seen people overly whining about it, is, don’t bother trying to use the provided capacitance adjustment tool, it’s just too big for the job…instead, use a jewelers screwdriver(flat or phillips of the proper size) to make the overshoot/undershoot adjustment, and you’re done.

Nearly identical to Tek OEM probes at a fraction of the price. I was able to adjust the "compensation" Capacitor near the BNC connector to get a nice sharp square wave at 1millisecond/divison sweep rate. However, the supplied "all plastic micro screwdriver" (plastic flat blade tip) was too flimsy to turn the adjustment Capacitor. Had to use a steel tip microscrew driver to make the adjustment. Note: The original OEM plastic adjustment tool had a steel flat blade tip embedded in the plastic handle-shaft for positive engagement.

Estaba buscando por mucho tiempo este kit y por fin lo he encontrado, me encanta lo practico que es

It arrived on time and they work great. Good price for the product

I had bought a 200 mhz Siglent oscilloscope, however there was a manufacturing defect in the probes. I contacted the company and they were sending replacement probes, but I needed probes to work on a project immediately.I ordered a pair of these probes. When they arrived I tested them thoroughly, I calibrated them and they appeared fine using the test signal of the scope, but I went further. I tried them on several complex waveforms that I was familiar with, and they delivered the signal to the scope with enough accuracy that I could not detect any difference between these and a much more expensive pair of Tektronics probes.The only little 'nitpicking' I have is that the BNC connector housing is larger on these (Just a little) because on these probes, the calibration adjustment is in the BNC connector housing, instead of the probe itself. Of course this also makes th actual probe slightly lighter and slimmer.I have always felt like the probe compensation was best done at the probe, so there would be a clean compensated signal coming down the leads to start with, however after comparing these with the manufacturer's probes (when they arrived) I could not visually detect any difference in the trace between them. (The manufacturer's probes were compensated at the probe.)These are inexpensive probes yet they do a good job at getting an undistorted waveform trace to the scope. I have not put them through the 'torture test' of surviving on my repair bench for several years so with them being inexpensive, I have a feeling they may not hold out very long, but with them so inexpensive, you can afford to replace them after a few years, and that is if they do die early. They might last a lifetime, especially if taken care of.

These instantly expanded my ability to work with my pocket scope. The small hook leads let me connect to test points without shorting to everything nearby. Five stars!