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

20g / 0.001g

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


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.


Tough construction with folding lid, difficult to damage with lid closed (though take care not to overload it, as with all 0.001g scales, it's very sensitive!)

Tare (re-set zero, e.g. put a on an extra tray or a stone-paper, pour the diiamonds ont it, re-set it to zero)

Orange backlist display

Included: two 10g calibration weights, tweezers, scoop, 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 140 X 85 X 20mm (5½ X 3¼ X ¾ inches); weighing platform 75 X 60 mm diameter

POWER: two AAA batteries (included)

CALIBRATION: 20g of calibration weights 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 10 years (proof of purchase required after 2 years).

The guarantee excludes:

- flat batteries. New batteries will be charged at £2.00 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.


Inaccurate readings can usually be fixed by calibrating the scale, this is something you can do yourself (two 20g of calibration weights are included). THIS IS NOT A FAULT, all electronic measuring devices need calibrating every now and again, see calibrating weighing machines. We can calibrate it for you, for free, if it is returned within three months of purchase; after that, there is a charge of £5.00 + £6.50 postage (UK).


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.


Ask a Question
  • What is the minimum weight this can weigh. Can it weight 0.001g?

    Yes, 0.001g.

  • Does it really weigh down to 0.001g or is there a small tolerance of +/ -

    The resolution ('readability') is 0.001g.  As you point out, accuracy ('tolerance') is not the same as resolution.

    The manufacturers of cheap scales never state the accuracy (if you paying several hundred pounds for a scale you would expect to be given accuracy). 'Accuracy' is a percentage. My best guess is that the accuracy will be about 0.2%. 


    if you are weighing 0.03g the reading should be correct to within 0.00006g (since the scale only reads to 0.001g, the reading should be correct!)
    if you are weighing 1.5g the reading should be correct to within 0.003g
    if you are weighing 20g, the reading should be corect to within 0.04g.