> > Where can you buy a 30g scale for $25 ?
>
>
Results vary with only some correlation with $.

2 kg x 1g.
About $US16 retail.
Using 1g coins as test weights gives 1g accuracy and linearity across range=
..
Reading varies a few grams when heated with a hairdryer.
Has a extra temperature compensation element on the load cell.
Reading repeatable on unloading/loading to 1g.
Unusually good overall  for a cheap unit.
Mislead badly by closely proximate GSM cell phones.

500g x 0.01g
$US12 retail from local Asian products importer.
Display may hunt a count or 2 while loaded and 'just setting'.
Good for money.
Reading will vary significantly if you blow on pan (as it should).

7kg x 1g.
$8US Shenzhen
(Much less usually probably but I needed them THEN).
Add 10% to reading to get correct weight !!!!
Good enough for making suitcase packing decisions.

___________________

Useful:

For weight_scales_2 < to << M_max_rdg of  Scales1.
Place scales 2 on scales1.
Zero/ Tare scales 1.
Place mass on scales 2 pan.
Both scales measure same weight.

       R
--=20
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