"Eric" wrote in message
...
| Is there a difference humidity between a electronic gauge and a mechanical
| gauge
|
| You would not think so,
| All weekend my electronic humidity has gone between 50% - 70%
| while in the same time the mechanical gauge has gone from about 70% - 80%

Mechanical meters often rely on such things as horse hair, pieces of wood
and similar organic things to indicate humidity. For accurate results use a
wet and dry bulb system with a psychrometric chart.

N