Special Care for All Scales

Follow the manufacturer’s directions for care, such as to avoid water and direct sunlight.

If using batteries, change them often, as accuracy decreases as the battery ages. I prefer using the A/C adaptor.

Altitude, temperature, and seasonal changes affect weight with about a 2 percent deviation; that is, the weight will be off 2 grams for every 100 grams. Every time the earth changes its rotational path (as it does each season), gravity at a specific location can change just slightly. The only way to keep scales absolutely accurate is to recalibrate often. But it is still a far more accurate and reliable system than volume measure.