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Jennings CJ4000

In Stock
Old Will's Price: $37.74

Jennings / JScale CJ-4000 Table Top Scale

Compact jewelry scale, with bright display
4000 gram capacity x 0.5 gram resolution

Overview of the CJ-4000 displaying the platform, backlit display, and operation keys.
"In A Nutshell"
Power 3 AAA Batteries (included)
AC adapter (included)
Display Orange, Backlit LCD
Tare Feature Yes
Hold Feature No
Calibration Feature Yes
Count Feature Yes
Platform Size 5.4" diameter
Scale Size 8.0" x 5.6" x 1.5"
Weighing Modes 4
Included Accessories
Power adapter Three AAA batteries Protective cover
  • AC Power Adapter

  • Three AAA Batteries

  • Protective Cover

Weighing Modes
Mode: Capacity: Resolution:
Grams 4000.0 g 0.5 g
Ounces 141.08 oz 0.02 oz
Pounds 8.810 lb 0.001 lb
Counting - Pieces
Product Details
  • Useful Weighing Bowl

    The CJ4000 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.

  • Auto-Off Feature

    If ya have ever had the batteries in something run out because you forgot to turn it off, you'll realize what a blessing this feature is. The CJ-4000 will automatically turn off after a few moments of inactivity.

  • 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. It's a good thing the CJ 4000 turns on displaying the unit of measurement you were using when ya turned it off. This can come in real handy if ya want to use the CJ4000 as a postal scale.


    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.

Recommended Accessories: Back to top
Five Piece Weighing Cup Set
Average Rating 10 Review(s)
Five Piece Weighing Cup Set
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My Weigh Three Piece Stainless Steel Bowl Set
Old Will's Price: $20.91

Customer Reviews: Back to top
CJ-4000 after 4 years of wieghing Rocks and Minerals
We bought this unit 4 years ago from Will Knott Scales. We have a rock and mineral shop and have literally weighed thousands of rocks and minerals on this unit without ever having a problem. The accuracy of this scale has been consistent from the first day we turned it on. It takes a beating and remains accurate. We test the calibration monthly. The batteries last a long time. We absolutely recommend this scale for weighing rocks and minerals!
Reviewed by: Danny Edwards from Hendersonville, North Carolina on 12/23/2014
Ordered with USPS Priority Mail, arrived in 2 days! From the mainland to Hawaii in 2 days, that's lightning speed fast! When I ordered it the description stated charger not included, and I forgot to include the charger (arrgh!). I was just about to order one when my package came in, and it came with the charger included!!! Great service, fast processing, insanely fast shipping. A+++
Reviewed by: Tiffany B from Pahoa, HI on 7/2/2014
Jennings CJ4000
I purchased the Jennings Model CJ4000 scale from Old Will Knott Scales and the customer service is outstanding. My order was handled promptly and I received the scale within three days from my initial order. I bought the scale for it's 4000 gram or almost 9 pound capacity and it's 0.5 gram or .018 oz resolution. I have not been disappointed in it's accuracy. The reason for my purchase is to weight backpacking equipment. My treks include hundreds of miles at a time and it is extremely important to know how much each item I carry weighs so I can keep my overall weight to a minimum. The scale runs on batteries and comes with an AC adapter and cover. If one is to maintain the accuracy of the scale it is important to keep the scale covered to protect the platform from dust and debris. It also has a backlit display, which is a great feature, and a tare feature that I can use to measure the total weight of all the ingredients in my trail recipes. Excellent service and an excellent product. You won't be disappointed with Old Will Knott Scales.
Reviewed by: Doug from Sandy, UT on 4/2/2014
Good for backpacking gear
I got this scale to weigh food and gear for backpacking. It serves the purpose very well. I can easily compare light items like plastic drink bottles to pick the lightest gear. It's great for assembling equal-weight packages of food for each day.
Reviewed by: John Joyner from Central Coast of California on 5/4/2013
Jennings/JScale CJ-4000
I love the scale. It is small but holds a lot. I use it for measuring glaze for ceramics.
Reviewed by: Darla Eggert from Northern Maryland on 4/23/2013
Does the job!!
Great item...glad I bought it!!
Reviewed by: Mark Beattie from Kansas on 6/11/2012
works great
I got this scale the better to doctor my tennis racquets with lead tape. A 1.0 gram resolution probably would have been ok, but I'm really glad I got this scale with the 0.5 gram resolution. Works great, easy to use. Really fast delivery from Old Will, too.
Reviewed by: Jeffrey from Seattle on 2/25/2012
Jennings CJ4000
Works as good as balances that cost 3 times as much. Very accurate and good battery life. I like the cover that is included as well. If it continues to function like it has I will purchase more.
Reviewed by: Jim from Illinois on 2/10/2012
Jennings CJ4000
Excellent product for the price. Very well made! I teach high school freshmen and you know how abusive they can be with equipments.
Reviewed by: Carl Hinote from Oklahoma City on 12/21/2011
Good scale. It is well designed with the cover doubling as a weighing container. Display is large enough to see easily w/o reading glasses. Would recommend.
Reviewed by: Mike Buchholz from South Dakota on 12/12/2011
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