20g / 0.001g, CK-20
20g / 0.001g, CK-20
20g / 0.001g, CK-20
  • Load image into Gallery viewer, 20g / 0.001g, CK-20
  • Load image into Gallery viewer, 20g / 0.001g, CK-20
  • Load image into Gallery viewer, 20g / 0.001g, CK-20

20g / 0.001g, CK-20

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Ref: CK-20

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(Single item price excluding VAT: £24.31)

Stock: Available

Free gift option with this item

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Pickup available from Quicktest (WD18 8JA)
Email us or call on 01923-220206 for appointment.


Pocket-size (if you have a large pocket)

Weighs down to 0.001g and up to 20g

Small diamond balance ("small" table balance...pocket-size if you have a large pocket).

Fold-down cover to protect the reading from drafts

Two calibration weights fit inside the cover, good idea, you don't lose them

Extra tray for 'pouring' diamond / small components. 

Download instruction manual.

To read an article about weighing and weighing machines click here. 

Technical Specification

RESOLUTION / CAPACITY: 20g / 0.001g.

Also switchable to ounces (oz), Troy ounces (ozT), pennyweight (dwt), grains (gn) and carats (ct)

- Troy ounce (ozT) for gold and silver (and was once used for letters and parcels)

- grams, metric. Today everyone weighs gold in grams. But dealers tend to weigh silver in Troy ounces.

- ounce (manufacturers say, 'English Ounce', correct term is Ounce Avoirdupois) for food

- Pennyweight (dwt), pre-decimal system, still used in USA

- Carat (ct) for gemstones and diamonds, not to be confused with carat as gold purity).

- Grains, originally used for weighing gold (based on a grain of wheat), today used for weighing powder for ammunition or catalysts

Click here for a summary of weights used for weighing gold and silver, click here for an online conversion program. 

SIZE: the balance 110 X 83 X 33mm; weighing platform 40mm diameter

Screen size: 32mm X 12mm

POWER: two AAA batteries (included) 


10 years. This covers manufacturing faults only, it excludes normal wear and tear, bowls, trays, finishes, clasps, hinges, feet, AC adaptors and  batteries; it also excludes being overloaded / dropped (e.g. error messages EEE, 0-Ld, or OUEr). The guarantee is invalid if the scale shows signs of foreign material (e.g. residues of herbs, chemicals, corrosion,  spilt tea).  After 1 year you must pay the postage both ways.

Inaccurate readings can be fixed by calibrating the scale, this is something that is very easy for you to do yourself with the two 10g weights supplied. Giving inaccurate readings does not mean it is broken - all electronic measuring devices need calibrating every now and again, see calibrating weighing machines


This weighing machine is not approved for use in trade and should not be used for buying and selling on a value-for-weight basis. To see legal (approved for use in trade) balances click here.

All equipment and materials must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it is working correctly.

Free gift details

If you would like one of the following free gifts with this product, select one from “Select your free gift” above.

Calculator with Conversions (RRP £4.08 )

10X21 loupe (RRP £3.75 )

Credit-Card Size Fresnel Magnifier (RRP £1.25 )


Ask a Question
  • Hi, I'm wondering if this is a trade approved scales? It says on the description that its not. Thanks

    The CK-20 is not approved for use in trade.

    0.001g approved scales start at about £1000.00.