Siglent Technologies SDM3065X 6 ½ Digit Digital Multimeter, DMM

This was my 3rd bench DMM, but my first in the 6.5 digit range. At first, I didn't understand how PLC worked for filtering, and I thought the stability wasn't great. Once I RTFM, and learned how to use it, I can't believe how stable it is! I sold one of my 5.5 digit bench DMMs and I will buy a second one of these. It's absolutely excellent, and stability should get even better with more hours of use. Though I was surprised how much more stable it was than all my other DMMs right out of the box.I use the Test Controller app (can be seen on EEVBlog) to remotely control and monitor my DMMs over ethernet. The price is excellent, there really nothing as good without going significantly up in price.

Delivery was fast and the item was well packaged and in perfect condition. I'm very pleased with this multimeter. It has the advertised precision and works very well. It's a good professional DDM at a reasonable price when compared to the competition.

6 1/2桁のDMMは随分と高価になってしまいました。かつて、34401Aは10万円もあれば購入できましたが、現行の34461Aは20万円以上出さないと購入できなくなってしまいました。それに、キーサイトは個人販売は基本的に行わない方針となったようですからサポートもあまり期待できないでしょう。待っていればどんどんと安くて良い製品が購入できるオシロスコープと異なり、選択肢の少ないDMMの中では、個人使用としてはこの機種は良い選択と思います。商品性能はほとんど34461Aのコピーですが、それゆえに使いやすく、精度も十分で安定して使えています。本体だけでトレンドが見えるのは予想以上に便利でした。

Meter is well made and I really enjoy the adjustability of settings on meter. Diode test mode goes up to 4v. Continuity is adjustable as well. In auto mode it is a little slow to register readings. Compared DC readings to my fluke meters and they were spot on. It’s nice having a bench meter and just pushing a button. No more dials.It also has an adjustable volume for buzzer. Now I won’t annoy others with the constant beeps and buzzes. It’s a great meter and I’m happy I purchased it. It’s used for repairing amplifiers and works great for that. I did upgrade my probes to Probe Master probes. I wish they would have included 4 wire probes with the meter. That’s my only complaint.

Extremely accurate per calibrated "DMM Check Plus" source. Great, easy-to-read display with BIG numbers that can be read from across the room. The 4-wire resistance and diode check are nice features and work well. Overall, great value for the price.I'd give it 5 stars, but am deducting 1 due to some confusion I had with remote SCPI commands. First, Siglent's SCPI documentation (sdm3065x_remote_manual.pdf) is poorly written and has some big errors, such as saying the "R? 1" command reports the oldest reading in memory and clears all readings (it actually seems to report and clear only the newest reading). There's no "Local" command to return keypad control, so you must either physically hit "local" on keypad or send full reset via *RST command. The "MEAS:VOLT:" command is convenient, but stops the local display from updating and takes almost 2 seconds to return a reading -- so generally you have to setup an infinite trigger, initiate it, then use "R? 1" to get readings when desired.