Author Topic: New low-cost ($170) 100MHz Differential scope probe from Micsig  (Read 40274 times)

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Offline mikeselectricstuff

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Micsig just launched a new 100MHz HV differential probe

According to their mailshot
Quote
Dear customer, We're honored here to introduce our new product: Micsig High Voltage Differential Probe! We tested it compared with Tektronix P5200A, it works extremely good

They did offer to send me one, but I just don't have time at the moment..
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Online nctnico

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #1 on: July 12, 2017, 10:49:22 pm »
Micsig just launched a new 100MHz HV differential probe

According to their mailshot
Quote
Dear customer, We're honored here to introduce our new product: Micsig High Voltage Differential Probe! We tested it compared with Tektronix P5200A, it works extremely good

They did offer to send me one, but I just don't have time at the moment..
Same here. I'm wondering whether it is a rebrand or their own design. In case of the latter it would be nice to do a teardown. Also I would like to be able to plug in a banana to BNC connector instead of the flying leads to be able to use it up to 100MHz.
Still the USB power and loop through is a nice touch.
« Last Edit: July 12, 2017, 10:50:57 pm by nctnico »
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Online EEVblog

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #2 on: July 12, 2017, 10:54:00 pm »
Too bad it's X50 and X500.
Max voltage is not much higher than the more useful X10/X100 probes.
 

Offline TheAmmoniacal

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #3 on: July 13, 2017, 12:30:39 am »
Looks great, they should send me one. I'll do a review!
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Offline mikeselectricstuff

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #4 on: July 13, 2017, 01:10:57 am »
Too bad it's X50 and X500.
Max voltage is not much higher than the more useful X10/X100 probes.
Yes, just noticed that. Could be be limiting for measuring lower level signals, especially on scopes that force BW limit on at low mv/div settings.
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Offline kirill_ka

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #5 on: July 13, 2017, 05:44:06 am »
And they offer it for $100 if bought with oscilloscope... I couldn't resist.
 

Offline cdev

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #6 on: July 13, 2017, 05:49:55 am »
Seems like a very good thing to have around.

Literally could be a life saver for some people!
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Offline alm

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #7 on: July 13, 2017, 06:47:13 am »
Note that $170 is the introductory offer. According to the AliExpress listing the normal price is $283, which is less of a deal.

Also I would like to be able to plug in a banana to BNC connector instead of the flying leads to be able to use it up to 100MHz.
The flying leads are fairly short and can be twisted, so I imagine they work well enough up to 100 MHz. I guess they could have used an insulated BNC connector, but accessories for those are kind of rare and might be inconvenient for field work. They may also not be much better for common mode rejection because of their unbalanced nature. And would invite even longer leads. At that point you might as well be using a stand-alone differential amplifier.
 

Offline lukier

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #8 on: July 13, 2017, 07:02:23 am »
And they offer it for $100 if bought with oscilloscope... I couldn't resist.

Damn, I bought Micsig scope over a week ago. Should've waited a bit.
 


Offline djacobow

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #10 on: July 13, 2017, 07:58:01 am »
I like that for the 5V you can plug it into the scope's USB port (I presume). Much better than battery alway dying.
 

Offline alm

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #11 on: July 13, 2017, 08:31:24 am »
And more versatile than proprietary probe power connectors as often used by brand-name probes.

We will have to wait for reviews to see about performance and safety. I am especially curious how the common mode rejection ratio (CMRR) will fare at high common mode voltages (voltage coefficient in the attenuators). But maintaining its CMRR across the common mode voltage range might be expecting too much from a cheap differential probe.
 

Offline cdev

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #12 on: July 13, 2017, 08:40:51 am »
I'm sure they would give you the discount. Just ask them.


Quote from: lukier on Today at 15:02:23>Quote from: kirill_ka on Today at 13:44:06
And they offer it for $100 if bought with oscilloscope... I couldn't resist.

Damn, I bought Micsig scope over a week ago. Should've waited a bit.
"What the large print giveth, the small print taketh away."
 

Offline DK-1

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #13 on: July 13, 2017, 09:50:55 am »
I seen the same probe yesterday on Aliexpress and i was curious.....
So i wait for some more info/opinion and almost sure i ll buy one because i've need one more....especially in this price range is really interesting.
 

Online TK

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #14 on: July 13, 2017, 11:40:01 am »
And they offer it for $100 if bought with oscilloscope... I couldn't resist.

Damn, I bought Micsig scope over a week ago. Should've waited a bit.
I am sure you can still get it for $100 if you ask micsig.
 

Online EEVblog

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #15 on: July 13, 2017, 11:49:05 am »
And they offer it for $100 if bought with oscilloscope... I couldn't resist.

Damn, I bought Micsig scope over a week ago. Should've waited a bit.
I am sure you can still get it for $100 if you ask micsig.

At a $100 ask if you can buy two.
 

Offline Dubbie

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #16 on: July 13, 2017, 11:52:49 am »
Yeah, the first thing I thought when I got Daves probe a week or two ago... "I wish I had two of these"
 

Offline TheSteve

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #17 on: July 13, 2017, 11:55:52 am »
If they did start selling them at 100 bucks they would be backordered pretty darn fast.
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Offline nidlaX

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #18 on: July 13, 2017, 05:46:06 pm »
This is supposed to be their own design, not a rebadge.

Would anyone with high voltage / transient testing equipment like to do a teardown / review of this probe? joeqsmith perhaps?  :-DMM
 

Online BravoV

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #19 on: July 13, 2017, 06:12:44 pm »
Kudos for the 5V power input, as it can be powered by ordinary cellphone's power bank.

Offline tautech

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #20 on: July 13, 2017, 06:19:16 pm »
Kudos for the 5V power input, as it can be powered by ordinary cellphone's power bank.
More so for the USB jack on the side so they can be daisy chained.  :-+
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Offline Hydron

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #21 on: July 13, 2017, 06:32:29 pm »
Very tempting... just wish it had been out long enough for some reviews. Thanks for the heads up!

Has anyone (maybe Mike?) had experience getting Micsig stuff into the UK? If it's likely to get caught up in customs with extra fees and delays then it might be easier paying a bit more and buying within the EU.
 

Offline mikeselectricstuff

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #22 on: July 13, 2017, 07:19:09 pm »
Very tempting... just wish it had been out long enough for some reviews. Thanks for the heads up!

Has anyone (maybe Mike?) had experience getting Micsig stuff into the UK? If it's likely to get caught up in customs with extra fees and delays then it might be easier paying a bit more and buying within the EU.
I've never had customs issues cause significant delays - depending on the courier, they either contact you for payment before it arrives in UK, or send an invoice later.  For higher value items, the brokerage fee is relatively small compared to what an EU distributor will charge as their markup. The rest is VAT which you'd pay either way. I don't recall if the full value had been declared.
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Offline lukier

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #23 on: July 13, 2017, 07:38:41 pm »
I've messaged Micsig on Aliexpress, well see if I can get the promo deal.
If I get the probe I can write a mini-review here and maybe compare it with Tek P5205 which I got from eBay "for parts or repair" (cable cut) a while ago.
 

Offline Mechatrommer

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Re: New low-cost ($170) 100MHz Differential scope probe from Micsig
« Reply #24 on: July 13, 2017, 07:48:09 pm »
Kudos for the 5V power input, as it can be powered by ordinary cellphone's power bank.
More so for the USB jack on the side so they can be daisy chained.  :-+
Someone was using their gray matter.  :clap:
not enough grey matter. that thing need mains supply or power bank around in order to work. i wish someone has enough wisdom of using 2 rechargable li-on stacked inside (preferably 18650 size hence easily replacable) 7.2V with charging circuitry (from 5V USB) that doesnt block operation during charging (ie charging while probing)...
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