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20g / 0.001g by OnBalance CJ-20

20g / 0.001g by OnBalance CJ-20

Ref: CJ-20

Price: 29.38 Including VAT


Weighs down to 0.001g and up to 20g

Small diamond balance.

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

This weighing machine is not approved for use in trade, it must not be used for buying and selling. For approved scales click here.


Built-on clear folding lid

Tare (re-set zero, e.g. put a on a scoop, re-set it to zero)

Orange backlist display

Calibration weight included

Auto-power-off if it isn't used in a few seconds (choose between 30, 60, 120 or 180 seconds)

Included: calibration weight, tweezers, carrying box

{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 an online conversion program

SIZE: the balance 130X70X40mm (5X3X1.5 inches); weighing platform 40mm diameter

POWER: two AAA batteries (included)

CALIBRATION: 20g calibration weight included

Click here for a summary of weights used for weighing gold and silver

Click here for an online conversion program


This scale is guaranteed for 3 years.

The guarantee excludes:

- flat batteries. New batteries will be charged at £5.00 plus £6.50 for return postage (UK).

- if you lose the battery compartment cover (sorry, we don't have spares)

The guarantee is invalid if there is:

- obvious damage, e.g. dents, holes, cracked casing, weighing platform loose.

- signs of 'foreign material'. That's anything that should not be there, e.g. residues of herbs, chemicals, spilt tea, corrosion from leaking batteries.


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.