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Jennings CJ300 Jennings CJ300 The Jennings CJ300 - Using Included Bowl As Container The Jennings CJ300 - View From Side The Jennings CJ300 - View From Above The Jennings CJ300 - View From Rear

Jennings / JScale CJ-300 Table Top Digital Scale

Compact jewelry scale, with bright display
300 gram capacity x 0.1 gram resolution

"In A Nutshell"
Power3 AAA Batteries (included)
AC adapter (included)
DisplayOrange, Backlit LCD
Tare FeatureYes
Hold FeatureNo
CalibrationExternal : 300g
Count FeatureYes
Platform Size5.4" diameter
Scale Size8.0" x 5.6" x 1.5"
Weighing Modes4

Included Accessories

  • Power Adapter
  • Three AAA Batteries
  • Pour-Out Bowl / Protective Cover

Weighing Modes

Mode: GramsCapacity:300.0 gResolution:0.1 g
Mode: OuncesCapacity:10.850 ozResolution:0.005 oz
Mode: PennyweightsCapacity:192.9 dwtResolution:0.1 dwt
Mode: CountingCapacity:-Resolution:Pieces

Product Details

Useful Weighing Bowl The CJ300 includes a weighing bowl for all those tough weighing jobs that require a container. The bowl holds approximately 750 milliliters, and is 8.4 inches by 6 inches. This bowl can also double as a dust cover for the scale when it's not in use.

Energy Saving Programmable Auto Off If you've ever had your scale turn off on ya in the middle of important measurements, you'll realize what a blessing this feature is. You can program the CJ to turn off automatically after about two minutes of inactivity, or to stay on until ya turn it off yourself.

Bright Backlit Display This table top scale has a fancy backlit display to help ya see your weight readings, even in dim lighting. Not only that! This digital scale's display will tell ya if ya pressed the tare button, and the unit you're weighing with.

Does This Thing Count? You bet it does! All ya 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.

Tare Feature The tare button on the front of this diet 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 item you're adding. This sure is useful when ya want to get the weight of each ingredient for that delicious recipe.

Stainless Steel Platform This compact digital scale has a durable stainless steel weighing platform to make cleanup a breeze. Unlike gold or silver, stainless steel doesn't scratch easily and keeps its shine without rusting or tarnishing.

It Remembers The Last Unit Ya Used If 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. The CJ300 turns on displaying the same unit of measurement you were using when ya turned it off.

Easy Calibration This scale comes factory calibrated and ready to use. Just in case ya need to calibrate it, the CJ300 comes with easy to follow calibration instructions. You'll just need to pick up a 300 gram calibration weight to get the job done.

2 YEAR MANUFACTURER'S WARRANTY! If ya 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 ya 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: 0

Product Reviews

Overall Customer Rating:
from 21 customer reviews.
Makes all the difference
Although this is still pretty new to me, my last scale was tiny and the numbers not stable, this scale fits the bill for me to measure the small amts when needed and a lot for stable already.
Reviewed by: Cathy from OH on 4/14/2021
Great price
Scales were exactly as described and shipping was fast.
Reviewed by: Eric from Falkville AL on 3/31/2021
Great product, Great service
Our first time ordering from Old Will Knott and must say we are most impressed. The extensive product selection offered
the exact product we needed. Better still, the process was easy and the delivery Super Fast. Highly recommend.
Reviewed by: Texas Kat from Austin TX on 12/2/2020
Just right!!!
I researched scales to a great extent trying to figure out best features, quality etc. So many from which to choose. It was my good fortune to settle on this one. Fits my needs perfectly - well calibrated, light goes on during the weighing process, perfect sizing and easy controls. Love it
Reviewed by: Bill from on 11/19/2020
Accurate and easy to read
I have calibration weights...(not NIST certified but checked on a "legal for sale" scales). the Jennings measured everything from 10 grams to 300 grams accurately. My mix of weights let me hit 10, 20 50, 70, 80, 100, etc....150....up to 300 grams. Very impressive for such a reasonably priced scale.
Reviewed by: Accurate from on 8/31/2020
Don't usually answer request like this, but I am so satisfied with this product I thought I would let you know. So far I am overjoyed. If the Quality and Reliability is built into the scale so it last many years It will be one of the best products I have bought on line. One Happy Customer. Paul
Reviewed by: Happy Coin Counter from on 11/28/2019
good features. cover doubles as weighing tray. bought to measure 3 part fertilizer for my dwc cherry maters. affordable. 20 YEAR warranty. fast shipping
Reviewed by: shazam from ky on 8/29/2019
Fits My Needs Perfectly
This compact scale accurate, weighs to the precision needed and the price was right. Excellent service, too! Ordered over the weekend and had the scale in my hands on Wednesday.
Reviewed by: Denise from MA on 2/13/2019
Great little scale
I am very pleased with the scale. It arrived very quickly and is very accurate. Thanks !
Reviewed by: Patrick from on 1/16/2019
Great small scale
We weigh resins and catalysts on this scale. It has a choice of grams and ounces. It is a nice small scale that is very inexpensive.
Reviewed by: Cindy from Colorado on 11/16/2018
Good value for an acurate scale
Accuracy seems to be right on. Easy read and very stable numbers on display unlike some scales that bounce back and forth between numbers.
Reviewed by: Kava Kauai from Hawaii on 10/29/2018
The Jennings CJ300 scale
I am just so tickled with my scale!..It was just what I was looking for. It is a very precise scale and the bowl is an added plus. Thank you for the way to do business with you.
Reviewed by: Monkee from USA on 4/18/2018
Have loved this scale.
I bought this scale in 2009 to mix epoxy in equal ratios and it has worked like a champ all these years.
Reviewed by: ds from on 12/28/2017
Item is great, easy start -up. Very accurate. Thank you!
Reviewed by: Paul from CT on 2/21/2017
Great people to work with! If you need a scale this is the place to buy one! I love this scale and didn't have to pay a lot of money for it. It does everything I need it too! Great scale!
Reviewed by: Bob from Michigan on 2/21/2016
Just what I was looking for!
This is a great scale. It's well made, accurate, and versatile. I needed a scale that not only weighs, but is capable of counting pieces. This scale does it, and does it well. I also bought the A/C adapter to complete the package. Everything was packaged nicely and arrived quickly. Thank you for the smooth transaction.
Reviewed by: Dale from Virginia Beach Beads - Virginia Beach, VA on 4/8/2014
Jennings CJ300
Received this item promptly and well packed. Great product at a great price!
Reviewed by: Steve from Miami, FL on 5/28/2013
Nice scale...
I cant say enough about Old Will Knott. Saw this same exact scale at a local "shop" for 89.99... i liked it, but for the price I thought i could do better. A quick Google search turned up Ol Will's site. Stellar. Cheap Money, fair shipping and the EXACT scale I wanted for 1/3 the price. Be sure to let it "sit" and warm up before use. I did not and found it would lose zero easily... now after being in the house for a few days... perfect. Great hopper, love how it floats on the scale. Doubles as a solid cover when the unit is not in use. The back-light screen turns itself on and off... off when the scale is resting at Zero, but then on again as soon as you add material to the hopper. Screen is easy to see, even when you've packed as much on the scale as you can. I really cant find anything about the scale or the transaction that I would consider to be bad. Buyers, buy with confidence. OldWillKnott will take good care of you, and the Jennings CJ-300 will not disappoint.
Reviewed by: JG from RI on 12/20/2012
Jennings CJ-300
Couldnt be happier with this scale..I fly electric RC helis..and the blades have to be weighed..in grams... Scale was delivered when promised..and packed perfectly.. I will order from here again shortly..movig on to bigger helis,and going to need a larger Thumbs up to oldwill...thanks again
Reviewed by: John Barnett from Philadelphia,Pa on 7/6/2012
Jennings CJ300
I could not of been happier with the serivice I received from OldWillKnottScales. It was the best!! And the Jennings CJ300 was exactly what I wanted. It has all the features I need without too many that I don't need and it works like a charm. Overall an excellent experience and I would highly recommend this scale and OldWillKnottScales to anyone!
Reviewed by: Cllyde Smith from Houston, Texas on 6/25/2012
Jennings CJ-300 digital scale
I came here on recommendation from coffee forums because I wanted a 0.1 gm scale to measure espresso. The scale is exactly as represented. Delivery just before Christmas was fast. I had a question on recalibration, called, and was picked up on the first ring. The advice was immediate from the person who picked up. I could not be happier.
Reviewed by: Keith Wiley from Foster City on 1/7/2012

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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