Amazon Deal Alerts & Discussion Thread

Higher count improves resolution, not accuracy.

https://www.opto22.com/support/resources-tools/demos/accuracy-vs-resolution

As can be seen on the comparison chart posted earlier, the accuracy between 210E and 210E Pro is exactly the same.

https://smile.amazon.com/dp/B001CZ9UY4

cold steel trail boss axe

23 bux

Great deal, a few years back it was almost $40 because of wranglerstar’s review.

Hrmm it’s only $1 more on amazon w/o any coupon Amazon.com

If you don’t have prime you’re having to pay tax and shipping on top.

I suspect that you also have to pay tax buying from Rockpals and it’s free shipping from Amazon since it’s over $25 regardless of prime or not.

$175.99 out the door including tax and shipping.

The chart comparing the two meters shows the error rates of the two meters taking various measurements. That isn’t what I was talking about making a difference in the results you get with the two different meters. What I was talking about was not the error rate of measurements with different meters - which is the manufacturers’ way of determining “accuracy.” If you use the accuracy (error rate) information provided by the multimeter manufacturers, you can see the point I was making.

An “accuracy” of 0.5% + 3 digits means that a meter operating according to its operating specifications will produce a value that is 0.5% on either side of the true value, plus or minus 3 of the least significant digits. Applying that error rate to the measurements of a 2000 count meter and a 6000 count meter brings results that prove my point - the difference in resolution of the two meters will result in measurements that are closer to the true value (on average) for the 6000 count meter in the circumstances I mentioned in my first post, above, all other things about the two meters being equal.

That is the result of working with more digits with the 6000 count meter in those circumstances - it is simple math. Quibbles about the difference between “accuracy” and “resolution” are beside the point.

“”Wurkkos with TypeC & 21700 batt included headlamp $18.49”“:https://smile.amazon.com/Wurkkos-flashlight-Waterproof-Flashlight-Rechargeable/dp/B08DCXL3BM?ref=deals_deals_deals-grid_dcell_tlt_91_65080e3e_dt_slot-15_39f3 There was an additional 8% discount for me but It seems to be gone….so $20 now.

I see $29.99 before the 8% click-pon. Hell, at $20 the 21700 would be worth it.

Yep … very good deal.

But how are you getting the $18.95 price?

There was a lightning deal, it’s expired now

Checked the 8% coupon box.

When lightning strikes

you gotta be quick

How do you search for lightning deals on Amazon?

If you click on “today’s Deals” tab under the header, near top of page you can find lightning deals on the page it takes you to, scroll about 1/2 way down and there’s a blue hyperlink for lightning deals on the left.

On the next page I usually check off some filters like home improvement, sports & outdoors, power & hand tools to reduce the page count and shows most of the flashlight and knife stuff.

Butt not too quick…a little farther down the page is this offer. A brown 4K penlight was offered when I got mine.


So my total was $17.59 A very good deal. :money_mouth_face:

So…this is a clamp meter, not a DMM…different topologies and although they’re better today (most of them, including the 210E/pro here) clamp meters will never be tools that anyone should rely upon for more precision and accuracy, no matter their count. This is I think especially true for the 210E given it’s comparatively low accuracy across almost all ranges, and it’s still just a 4-digit display. Sorry, but even though the chip is a platform across their models, changing it to 6000 from 2000 isn’t a great benefit and the extra digit gained in higher ranges may as well be treated as a ghost imho, because the accuracy still isn’t there. It’s not going to become a good mid-level multimeter this way. Seems like the best benefit from the eprom changes are in other features.

If someone truly needs greater accuracy then they really need to step up to a 20000 count 5 digit meter or better (seems like the entry point there is around $120 these days for cheaper units). But that said, for the types of work that do truly need that accuracy, you’re probably going to need something better anyway, save for some HVAC/industrial units that have a couple features like micro/nano amps for flame sensors and such. OR, look for a meter that has an actual additional range that meets your needs. Say, a microamp range position dedicated to those low levels (thus making count and digit display irrelevant or much less relevant).

What the 210E gains from a 6000 count hack is simply a little more room on the low ranges to keep that last milli-digit before losing it during the bump up to the next range level. In this case you get to change from 1.999 dca to 5.999 dca rather than bumping to 02.00…and the same for aca. But when is that milliamp value useful within the accuracy limitations of this meter?? How about the millivolts? It won’t do anything to improve resistance readings. It’s not going to increase the sampling rate above the 2-3/sec it is now. The most useful gain (might) be the extra digit on the high ranges, although generally there’s not a lot of use for the extra resolution when you move up the ranges. These are not intended for fine electronics after all and they are not true multimeters.

Frankly for the majority of things 2000 count is actually just fine. The industry shift to higher counts over the last decade or so hasn’t been a bad thing but it’s not necessarily the best or most useful thing either - not while base accuracy and other things don’t always improve along with it in these inexpensive meters. And since cheap meters rule the world now, I mean what can you expect really. It’s something akin to “lipstick on a pig” but maybe marketing has made people think they “need” this finer resolution for general work. But without the accuracy and repeatability of a higher quality bench meter or multimeter, these extra digits aren’t so useful and should not be relied upon if they are actually needed - not in these cheap meters and especially not in clamp meters. If the desire or the need is there, then quit farting around and step up to an instrument that can actually deliver for you, y’know?

Just got 2 for 1 ($19) on RovyVon A33 penlight.
Search for RovyVon penlight, click the sponsored link at top of page, scroll down and click the 2 for 1 link.
I love these penlights and saw RovyVon has a sale on their site. Checked Amazon and found this!
Found it with phone browser, not sure if desktop experience will be the same.