RND Labs RND 355-00010 possibly better than Brymen BM869s budget DMM - Page 1
Forum section: electronics / testgear

author: FPdesign
author_rank: Contributor
timestamp: November 26, 2022, 06:12:58 pm
content: Been looking into grabbing an other DMM in the $200 range and came across the RND Labs RND 355-00010. Looking at the data sheet, specs/accuracy wise seems in the ball park of the BM869s but has brought the DMM to 2020s with some nice added features, like data logging, trend capture, diode test 3.2 V (which seems to be a shortcoming on the BM869s from what I've been reading), Bluetooth, rechargeable battery, etc...The only obvious drawback might be loosing the 500 000 counts function of the BM869s. But from reading up the updating is slow on this function?I know the Brymen has a good reputation for a "budget" DMM, but has anyone any experience with the RND Labs RND 355-00010? There's not really much user feedback online, unlike with the BM869s. Or can anyone spot a difference I would be losing out on going with the RND Labs DMM over the BM869s?Need a DMM that's bit more precise for calibrating/servicing synthesizers, mostly 5-15V range, up to 1mV accuracy per service manuals. Your feedback would be appreciated.Data sheets:https://www.distrelec.ch/Web/Downloads/_t/ds/RND%20355-00010_eng_tds.pdfhttps://brymen.eu/wp-content/uploads/biall/102092/102092.KARTA_EN..2015-07-09.1.pdf

author: bdunham7
author_rank: Super Contributor
timestamp: November 26, 2022, 06:33:18 pm
content: Looks like a rebadged CEM. Not a company I have any faith in.https://www.cem-instruments.com/en/product-id-891

author: Martin72
author_rank: Super Contributor
timestamp: November 26, 2022, 10:26:44 pm
content: QuoteI´ve found another ones, bandwith and (partially)accuracy.

author: Gyro
author_rank: Super Contributor
timestamp: November 26, 2022, 11:16:12 pm
content: That photo of the guy using it should go in the 'Stock Electronic Image FAILS' thread (I don't think we have one for 'Dangerous').

author: FPdesign
author_rank: Contributor
timestamp: November 27, 2022, 01:35:34 am
content: Quote from: bdunham7 on November 26, 2022, 06:33:18 pmDon't know the company myself.. so they have a bad rep?now I know who makes those I found couple reviews from here with other similar rebadged 891s.. feedback was on the positive side..

author: FPdesign
author_rank: Contributor
timestamp: November 27, 2022, 01:46:57 am
content: Quote from: Martin72 on November 26, 2022, 10:26:44 pmI cross checked the data and from what I could see they'll neck on neck in accuracy, no? On some BM866s had a slight edge (usually lower ranges) and on others the RND (usually higher ranges).. mid range about on par.. but please do correct me if I might have understood something wrong..The RND updates 20 times a second and the BM869s only 5 times.. even less once 500 000 engaged..

author: coromonadalix
author_rank: Super Contributor
timestamp: November 27, 2022, 02:52:41 am
content: i would pick a Brymen right awayWe did saw in the past bad designs or quality issues with CEM, not sure if this one is betterand once again the "fake" look a like 500k count range is a resolution gimmick not an precision, i have it on my Amprobe (same Brymen chipset) and i use it rarely, aznd yes it will be slower in speed sampling / measurementsAnd sometimes on fleabay you can snatch an 859S (S= beter backlight dispertion) and hold still better on a bench for lower priceMany meters are based on the same Brymen chipset