K-125 Mini oscilloscope VS DSO203 - Page 1
Forum section: electronics / general

author: tomtop
author_rank: Newbie
timestamp: November 18, 2011, 02:09:15 pm
content: hi, i found a new mini oscilloscope called K-125, is there any body know about this?http://www.diyertool.com/k-125-mini-oscilloscope-handheld-digital-scopemeter-pocket-size.htmli am considering to buy one, it just cost 117.55USD.How about DSO203? which one would be better?Thanks!Valerii Proskurin

author: FreeThinker
author_rank: Frequent Contributor
timestamp: November 18, 2011, 02:25:42 pm
content: Do you have a REAL NEED for a pocket scope? If not then save up a few $ more and get a proper bench scope (or find a good one on Ebay second hand) You will thank yourself later

author: Unknown
author_rank: Unknown
timestamp: November 18, 2011, 03:07:28 pm
content: Very small, low resolution screen. Just 100 points of horizontal memory (current standard is about 1 million in bench scopes). Single channel. Standard BNC jack with exposed ground is hazardous for floating equipment unless exclusively used for SELV. It might be useful in a pinch for some niche applications (eg. in a moving vehicle with voltages limited to 12V), but it's probably closer to a toy that to a real bench (or portable) scope.

author: tomtop
author_rank: Newbie
timestamp: November 19, 2011, 02:13:22 am
content: Quote from: FreeThinker on November 18, 2011, 02:25:42 pmi am a student, and have no more money...i just want to get it in pocket and test anywhere, not to walk to lab everytimei have some simple DIY tool kits in my dormitory

author: FreeThinker
author_rank: Frequent Contributor
timestamp: November 20, 2011, 04:48:12 pm
content: Quote from: tomtop on November 19, 2011, 02:13:22 am1) You have no money? even more reason not to waste what you have.2)Erm ..... Test every where? Don't really see the need or the point unless it's bragging rights.3)This is a great way to start. Building your own test equipment is a tried and tested method of gaining experience.

author: ivan747
author_rank: Super Contributor
timestamp: November 21, 2011, 01:53:49 am
content: For that money, you better get a Velleman HPS scope. They are relatively rugged, seem to have a good construction and are safer that this. You may want the HPS10, which is the cheapest one or the HPS140, the newest one with USB. There was a quite long topic on the forum about it, you can search it if you want. The HPS50 seems to be a good balance between size and ease of use.The second alternative is to get a good Tektronix 465 oscilloscope on eBay. Working ones are usually worth $100 USD. I haven't bough one because of shipping costs and because it is huge for my 50cm. deep desk.The third alternative is to wait until you save $400 and buy a good Rigol DS1052E, portable enough to carry around and powerful enough to do lots of stuff. This is the alternative to choose if you are into digital electronics. Trust me, the HPS10 doesn't have enough sampling memory for debugging digital circuits, specially communication protocols. The Rigol has a LOT, compared to similar scopes of its class, as far as I can tell.Ivan

author: tomtop
author_rank: Newbie
timestamp: November 21, 2011, 03:22:47 am
content: OK.....i bought an ADS1102CAL from Chinabut i will buy a mini oscilloscope when i have a little extra money, just days later...

author: Mechatrommer
author_rank: Super Contributor
timestamp: November 21, 2011, 07:36:24 am
content: Quote from: tomtop on November 21, 2011, 03:22:47 amhow much bandwidth you want to play with? is it 4 channel 20KSps (2KHz BW) worth playing with? if you can have it for around $20?

author: ivan747
author_rank: Super Contributor
timestamp: November 21, 2011, 08:39:42 pm
content: Quote from: tomtop on November 21, 2011, 03:22:47 amWhy that face? That scope is probably going to last a long time, and you can make money out of the designs you test with this sort of equipment.

author: alyque
author_rank: Contributor
timestamp: February 15, 2012, 07:09:47 am
content: Quote from: tomtop on November 18, 2011, 02:09:15 pmNice device! i get it from this site, it is bigger than expected, twice as big as dso203, and the package is very good, comes with interior slot pocket, looks very professional!The only disappointment is appearance, dso203 is much more elegant.anyhow, it is a good product! ps: we just talking about mini oscilloscope! NOT Tek or Agilent equipment!Thanks for Valerii's recommendation!Fred PACHE

author: songre
author_rank: Newbie
timestamp: March 03, 2012, 01:22:41 pm
content: I must say this information was quite rewarding and must be taken seriously, I am considering ordering the Rigol DS1102E scope no doubt about it. After reading all the comments and watching that exceptional video I am convince that I am not going to waste my hard earn money on the small mini scope for now. Maybe later for traveling or field work. Cheers!

author: T4P
author_rank: Super Contributor
timestamp: March 03, 2012, 03:51:30 pm
content: Quote from: alyque on February 15, 2012, 07:09:47 amWell you wasted your money . Just 2x more gets you a decent Atten ADS1102CAL from Aliexpress . 332$ w/ EMS shipping .

author: popultek
author_rank: Newbie
timestamp: August 30, 2012, 01:54:40 am
content: Look someHandheld Oscilloscopes productsbyhttp://www.popultek.com