Goupchn High Voltage Oscilloscope Probe P4100 with Accessory Kit 100MHz 2000V 100:1

fried on first use. total junk

Excellent, it was as described. Material quality is very good

I have not tried this on high voltage systems yet, but tested it on my 120V line voltage at my house with my portable osciliscope and it works well, seems to be high quality and will be just the thing I need to check power on 3 phase 460V at work.

A passive scope probe is a very simple device, no need to spend $$$. I use this with an Analog Discovery 2 USB scope, and old Tek tube scopes. Im sure it would work with just about any scope with 1 Meg input. The compensation range is fairly wide. The 10x/100x switch is handy. Theres no probe readout scaling factor (extra side pin on BNC connector of more expensive probes) but who cares? I can easily multiply by 10 or 100 in my head. One word of caution, like all high voltage probes, the safe working voltage (i.e. no arc over) is reduced at higher (RF) frequencies. Theres a voltage vs frequency derating graph in the instructions, be sure to double check that. But for audio signals, like tube amps, this is not an issue.

the probe works well and has been used several times with high voltage supplies

Like I said, after a month, so for so good.

Used for everything from looking at encoders to VFD’s.

This 100:1 scope probe is well made, and worked perfectly allowing me to scope signals that would damage the inputs on my scope. For instance, I wanted to visualize the 60 Hz AC sine wave that was present on a standard 120 VAC line. Because of RMS voltage, the actual line voltage would have been much higher than the input rating on my scope, thus being dangerous and damaging it. By using this 100:1 attenuation probe it was now possible to safely view the waveform. If you set your scope on 100X setting then even the scales read properly on the display.

This is a nice probe and a great price. I used it and immediately ordered another for my traveling oscope!!

I do some work on old vacuum tube ham radios. It is fairly common that the final amplifier tubes have 600-800 volts DC on them. Then the signal of 100+ volts AC is applied on top of that. Most 10x probes that come with an oscilloscope are good for 400-600 volts before you destroy them. So, these 100X probes that are good to 2KV are an important tool. I have used this one I purchased only once. But, it works as intended and meets my needs. The probe appears to be well built, reliable and safe to use