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Jennings JSVG20 Jennings JSVG20 The Jennings JS-VG-20 - Side View Showing Protective Windscreen The Jennings JS-VG-20 - Bottom View The Jennings JS-VG-20 - Close-Up Of Weight Display And Control Buttons The Jennings JS-VG-20 Accessories Shown... Hard Case, Calibration Weight, And Weighing Scoop

Jennings / JScale JS-VG 20 Digital Jewelry Scale

100th carat resolution and eight different weighing modes
100 carat capacity x 0.01 carat resolution

"In A Nutshell"
Power3 AAA Batteries (included)
DisplayRed backlit LCD
Tare FeatureYes
Protective CoverHinged
CalibrationExternal : 20g (included)
Count FeatureYes
Platform Size1.5" diameter
Scale Size4.75" x 3" x 1.5"
Weighing Modes8
Included Accessories20 gram calibration weight, weighing scoop, hard protective case

Weighing Modes

Mode: GramsCapacity:20.000 gResolution:0.002 g
Mode: CaratsCapacity:100.00 ctResolution:0.01 ct
Mode: GrainsCapacity:308.65 gnResolution:0.05 gn
Mode: OuncesCapacity:0.7054 ozResolution:0.0001 oz
Mode: Troy OuncesCapacity:0.6430 oztResolution:0.0001 ozt
Mode: PennyweightsCapacity:12.860 dwtResolution:0.002 dwt
Mode: MilligramsCapacity:20,000 mgResolution:2 mg
Mode: CountingCapacity:-Resolution:Pieces

Product Details

Does This Thing Count?You bet it does! All you need to do is weigh a sample amount of pieces, so the scale can know how much each piece weighs, then start counting. You'll be finished in no time.

Bright Backlit DisplayThis mini scale has a fancy, red, backlit display to help you see your weight readings, even in dim lighting. The best part is, you can choose to have the backlight on or off while you're weighing. So, if you're running low on battery power, you can weigh your things with the backlight off to save batteries, and money.

Hinged Protective WindscreenWhen you're weighing with high precision scales like this one, even the tiniest breeze can interfere with weight readings. This Jennings scale comes with an attached windscreen to keep out those pesky drafts. The protective cover is hinged, you just lift it up to get it out of the way.

Easy CalibrationThis scale comes factory calibrated and ready to use. Just in case you need to calibrate it, the VG 20 comes with easy to follow calibration instructions. Just use the included calibration weight to get the job done.

Energy Saving Programmable Auto-Off You can program the JSVG20 to turn off automatically after a few minutes of inactivity or to stay on until you turn it off yourself.

Tare FeatureThe tare button on the front of this digital jewelry scale can be pressed to "zero out" the weight on the scale. You can then add more weight, and the display will only show the weight of the items you're adding. This sure is useful when you want to use the cover as an expansion tray to weigh your things, or if you want to get separate weights of multiple items.

It Remembers The Last Unit You UsedIf your application needs weights in the same unit of measurement, (like ounces for instance), it can be a real pain if your scale always turns on ready to weigh in grams. It's a good thing the Jennings JSVG20 turns on displaying the unit of measurement you were using when you turned it off.

Man, This Thing Is Small!You won't have to worry about this scale taking up space. It's just under five inches long, and about one and a half inches thick! You can take this portable scale pretty much anywhere you want.

90 DAY MANUFACTURER'S WARRANTY!If you have a problem with this scale, just send it to Jennings' warranty center in Phoenix, Arizona. They'll fix or replace your scale and send it on its way back to you within a week of receiving it. You should expect your replacement to arrive in about two to three weeks from the day you send the original off. Keep in mind that sometimes Jennings runs out of stock, which can cause a delay in the warranty replacement process.

Product Questions

Number of questions: 1
I need to be able to disable the auto off feature if it has on. Does it have one, and if so can it be disabled? Thanks
Asked by: karlene on October 12, 2019 9:50 PM
The manual doesn't specifically state that the scale has an "auto off feature", but in our experience, scales that operate on just batteries typically come equipped with an Auto Off feature in order to extend the battery life. Thank you for your question!
Answered by: Pati62365 on October 14, 2019 12:00 PM

Product Reviews

Overall Customer Rating:
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from 27 customer reviews.
Love it
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I'm so glad I decided to order a real name brand scale that has a real website with product info, etc. And I'm so glad I bought from a company that specializes in scales. The packaging was great, it shipped a couple hours after I ordered, and the scale really works extremely well. I use it to measure extremely precise dosages of supplements that I want to take a very consistent amount of to avoid side effects, and it is perfect for this.
Reviewed by: Marc from on 8/4/2022
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Does not weigh the same item correctly time after time
Reviewed by: Daniel A Frazier from on 5/2/2022
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I have made several purchases with Old Will Knot over the years, and the people that work there with the quality of the products is why you have me as a return customer. Don't change anything.
Reviewed by: Nick from on 8/23/2021
Just What I Needed
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My Jennings scale is working great and is just what I needed. A big thanks to the knowledgeable staff person for helping me pick the scale that best suited my requirements. Allow me to 'weigh in' as a very satisfied customer!
Reviewed by: Steve B. from New Albany, OH on 8/21/2020
Jennings mg scale
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It does as it says it does with accuracy.
Reviewed by: pjt from on 5/27/2020
Wanders all over
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First time I got to use the product, it won't maintain a zero. Wanders up, wanders down.i know all the tricks about static charge so that's not the issue. Put my powder funnel in place. 93.70 is its known weight. That it away... Shows negative 93.6, 93.65.
So far not impressive.
Reviewed by: Markb from on 1/1/2020
Could not be more pleased with its performance.
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I use this scale strictly for reloading pistol caliber cartridges and am more than pleased with its performance. This scale outperforms my digital and two beam scales I’ve used for years. It dampens more quickly (almost instantly) and gives more consistent readings than any of the others. Although I prefer the extreme accuracy it provides +or- 0.05gn for reloading, it is really better suited for rifle cartridges. If you’re interested in how I reload read further.
The following method I use to accurately measure powder from any powder measure is as follows:
(1) When you receive the scale the dish is packed separately. Upon contacting Old Will Knott Scales I was assured the pressure required to press the dish onto the scale was safe.
(2) Do not use the plastic grain/gem bowl supplied as it is not static free (the powder will stick to it).
(3) When making plus or minus adjustments to the powder measure, cycle it a few times so the powder has a chance to settle.
(4) Size and prime a case.
(5) Turn on the scale and set it to read in grains.
(6) Zero that case on the scale.
(7) Charge the case from your powder measure (hopper).
(8) Weigh the case. The weight of the powder is now displayed.
(9) Do not return the powder to the hopper yet. Empty the powder into a container and tap the empty case onto the loading bench until it is clear of any residual powder.
(10) Using the same case, repeat this process several times with the same powder charge setting until you’re satisfied.
(11) Return the container of powder to the hopper.
Reviewed by: Bob from on 7/31/2019
workable <$100 milligram scale good enough accuracy for individual use milligram measures
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Only complaint is it will count up in mg slowly over time while left turned on for a long period thus should optimally be repeatedly re-tared between weighs when this occurs which isnt such a pain to do a few capsules of supplement but doing a LOT of weighs under 50mg regularly, or needing better accuracy than within 5-10mg of your target you may want to invest in a higher price range as this one could get frustrating with a high volume of use.
My last one from here lasted about 6 years finally crapped out following loaning it out so I bought a new one the Jennings is still the cheapest functional "precision" milligram scale and overall worthwhile to meet most <20g personal precision needs on economy budget. To me says something to still go for the same scale years later if it ain't broke dont fix gets my small jobs done accurately. Oldwillknott I've been buying my scales from your site for at least the past 15 years heres to many more, best go-to place for online delivered scales of all types
Reviewed by: double d from on 7/3/2019
Love it!
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I ordered this scale to formulate skincare and some ingredients are minute and need to be weighed , this scale is so handy!& it was a great price and arrived very swiftly!
These guys have a great selection and great prices and offer tremendous customer service!!
Reviewed by: Kathy from on 6/17/2019
The best
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Just what I needed, does a great job.
Reviewed by: Robland from on 4/30/2019
Jennings JSVG20
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Seems to be a quality small using. I using it as a back up unit. No problems encountered with it.
Reviewed by: DA from on 12/24/2018
Jennings JSV 20
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I bought the scale to use for reloading. The 20 year warranty and the sensitivity to the hundredth Green was appealing to me. I have used it in limited amounts of time but so far have been very satisfied with my purchase.
Reviewed by: Fjrdoc from on 9/5/2017
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Very satisfied with the scale and the customer service provided. Would buy from them again.
Reviewed by: Bob from on 4/10/2017
Good Product
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All is going well with this product. Thank you for the quick delivery even though it was ordered just before the Christmas-Holiday weekend. Thank you
Reviewed by: D Tupper from Washington State on 1/2/2016
very good
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I use it to weigh powders for my dogs for flea prevention. I needed something at a reasonable price that would measure mg and this works well.
Reviewed by: Mary from USA on 5/26/2015
Accurate scale
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This Jennings scale model JSVG 20 is extremely accurate and sensitive to the tiniest product measured. It is easy to use, comes in a sturdy box to keep it safe and measures small quantities accurately. I would recommend it for the money. The directions are in very small print and it took me several readings to understand but once you know how to use it the scale is simple to use.
Reviewed by: Barbara from Ohio on 2/7/2015
Great For Reloading
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This scale is quite accurate when it comes to reloading and it's sensitive enough to trickle powder with, too! I've checked my loads with a balance beam scale and Hornady Digital scale and they are all dead on loads. When I trickle the powder, so far Varget, I'll stop about.05 Grains from where I want to be, like 25.55, trying to be at 25.60. Then I pick up the load and replace it and after it settles it'll be right at 26.00 grains, but I mean what's .05 grains? I don't know any Redding, RCBS, Dillon, Hornady, etc scale that has a readability of .05 grains. That's outstanding! Great scale for the money, and it may not feel heavy, and made from steel, but it's light, compact, and dang accurate, so five stars!
Reviewed by: Ryan from Utah on 6/22/2014
Smart compact but flimsy
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I bought this scale to weigh gemstones and I like the different modes for jewelry and the price was right. But I was shocked at the cheap plastic construction. I'm gemologist and I have a much better 100ct scale gemological scale that I left in my home country when I moved here. So I'm comparing this to that and other scales I've used. This falls at the bottom of that list. When I hit (gently)the power the scale tilts.I get multiple readings. I can see plastic mold marks and creases that should have been trimmed. The lid just fall onto the base, my other scale had a vertical closing lid but had a softer closing mechanism. I plan on returning this,hope that goes smooth..
Reviewed by: Timothy from Oregon on 5/31/2014
Jennings Scale JSVG 20
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Just received this scale to replace another scale I was using that did not give me the accuracy I need for reloading. I was very surprised to see it get here today, that is fast service, even more surprised with the scale itself. The box it comes in is extremely nice, not the usual cardboard box so many come in. Now for the test. I have an RCBS balance beam scale that is accurate but a little slow to use all the time. The JSVG 20 is very fast and very, very accurate. Several powder charges I weighed are exactly the same on both the digital and the beam scales. Just what I wanted and needed. For an accurate scale and a beautiful storage box this one can't be beat especially for the price and the super fast shipping. Thank you very much, I am a Happy Camper now.
Reviewed by: Frank v F from Fresno, CA. on 5/8/2014
A good deal
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I am glad I got the scale from you-all,it works great.the cover on the box you keep it in is of poor shape. The skin in coming off on all the corners.It will still keep the scale safe so I'm not going to return it, just becouse of that.Over all I am happy with it.I sm going to use Old Will's again to get other scales if that te;;s you any thing.
Reviewed by: Aaron Creekmore from Oklahoma City on 3/26/2014
So far, so good
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I have only done a cursory examination of the scale. I observed that there was an error for a few minutes until the temperature stabilized, but after that, the readings were consistent and reproducible for the several minutes that I tried it out
Reviewed by: Dana from Reno, Nevada on 3/20/2014
Excellent Scale
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I Use this scale to measure powder charges for reloading. Very impressed!!! It is very accurate and am able to trickle powder into the pan. Much better than any reloading scale I have tried. Also quite pleased with the service provided by Old Will Knott Scales. Received the scale a few days after ordering.
Reviewed by: jim K from Central Pa. on 1/15/2014
Excellent scale
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Got this for weight sorting .22 cal air rifle pellets. Very pleased with it. Repeatable to 0.01 grains every single time.
Reviewed by: Patrick Hollier from Baton Rouge, LA on 11/25/2013
My experiencevwith the JS-VG 20 scale
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I do needed a scale to reload ammunition. With traditional digital scales from shooting brands my bullet speeds varied too much. So I searched for digital scales that had grain units, that were not sold in firearms stores. A jeweler recomended me JS VG. I purchased a 20g model. Using this scale to measure powder and bullet for reload, my bullets speed had no big variation. I made measurements in a very accurate scale at the university lab of chemestry. Comparing the different scales I had, the JS VG showed significant similarity with the university scale. JS VG 20 is in my oppinion one of the best scales in the market.
Reviewed by: Andreas Barragan Bauer from La Paz - Bolivia on 7/22/2013
JSVG20 Scale
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This is a great scale it has a very small resolution and is very repeatable. The best past is it doesn't turn off while you're using it...
Reviewed by: Corbin from The south on 3/6/2013
This scale to too good.
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I received the above scale a few days ago. I have already recorded hundreds of observations of weighing various tiny objects. The problem is that the scale is too accurate. The scale is too reliable. The readings are too consistent. I have tried over and over but the scale always remains perfectly accurate to its precision rating of plus or minus 2 milligrams. The scale is too perfectly calibrated. The scale is too well made. I will never be able to cheat my customers with a scale like this. I will never be able to pretend that I made a mistake. I will never be able to blame an error on the scale. I will be forced to take responsibility for my own mistakes. I would never want to do that. How can I possibly do business illegimately with a scale like this? I am going to return the scale and immediately request a replacement that is not nearly as good. Hopefully, I will have to pay more money for another scale that is very inaccurate. Why would any business person want to use such a perfectly accurate and perfectly calibrated scale like this? Why would any business person want to use such a high quality scale? I want a scale that is inaccurate. I want a scale that is not calibrated. I want a scale that will make significant errors. I want a scale that will quickly break down. I do not want a scale that will last. I want a scale without a warranty. Isn't it ridiculous to have a scale with a 20 year warranty? I do not want a precision scale like this. What will my customers say when they discover they have not been cheated? What will my customers say when they realize I am a legitimate business person? How will my customers react when they realize that I am being honest with them? What will I do when I cease to have any complaints? What will I do when I have too many referrals from my customers? What will I do when I have more business that I can manage? What will I do when I realize I am making a legitimate profit? I am sorry but this scale is giving me too many problems. I would rather pay more money for a scale that is inaccurate than less money for a scale that is perfectly accurate. I cannot possibly use this scale. I should have never purchased this scale. This scale is too good. With this scale I am being forced to have a legitimate business. Who in the world wants that? Thank you.
Reviewed by: Allen from California on 9/10/2012
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Easy to read & use very sensitive.
Reviewed by: Sheila from Honolulu, HI on 6/20/2012

We know you have a choice when you buy scales online. Just know that when you buy digital scales from Old Will, it's always a "Worry Free Deal".

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