Micsig DP1500 High Voltage Differential Probe Kit, 3.5ns Rise Time 50X/500X Attenuation Rate Oscilloscope Probe Kit Accessory, 1500V 100MHz (DP10013 Upgrade)

I work in an electronics lab, and we use differential probes frequently. Most of our measurements are made on Class D amplifiers. I recently purchased some Tektronix differential probes which came in at around $1,900 each. I also ordered one of these to compare it to the expensive ones. The Tektronix ones have a higher, 200MHz bandwidth, but most of our measurements don’t range higher than 40kHz, so this cheaper 100MHz probe still easily meets our requirements. Both probes performed identically. It was not apparent at all which probe was which on the o’scope screen. The noise on each probe was the same. Another nice thing about this probe is that it doesn’t have a proprietary connector. The Tek probes can only be used with a Tek scope, but this one can be used with any oscilloscope. You do need to power it externally using the USB cable, but that’s not really a big deal for me since all of our scopes have USB ports that can be used to power the probe. This really is a more cost-effective way to gear up a lab, so as long as you don’t need to measure signals exceeding 100MHz, this would be a fine solution for you.

High voltage differential probe kit, comes with two different style connectors. Oscillation connector fits like it should, not loose. When everything was hooked up and testing, I wiggled the oscilloscope connector and the connection was good. Probe is working good.

I've got one of the older Micsig DP10013 probes and a Keysight N2790A one so wanted to compare this new model from Micsig. Its CMRR is pretty good - at 1MHz, 200:1, I measured -52.4dB although that fell to -28.5dB at 10MHz. But that's comparable to the Keysight and the DP10013. Where the Micsig is a lot better is with noise - at 200:1 I measured 56.3mV, about a third of the Keysight. Very impressive, expecially when considering the price. The only bad point is these probes come with a USB supply with a US plug. You need a seperate supply as my scope did not have enough USB power for this probe. Sure you can use an adapter but that's not nice.