Accuracy is reasonable in relation to its low price (initially ±5% RH, mostly much better) but don't expect accuracy to last for years. You should cross-check it regularly with a calibrated hygrometer. The instrument can not be calibrated. If accuracy drifts outside specifications, you have to dispose it or you write the drift on the instrument, like "values 3% RH too high".
|
Other functions:
Battery life is about 12 month, with high quality batteries (Varta, Sony...) even more.
| ||||||||||||||||||||||||||||
1 Hygrometer TFA, with battery for about 12 month, available in black or white (please indicate) |
12,- € |
10 Hygrometers TFA |
110,- € |
50 Hygrometers TFA |
500,- € |
1 Varta battery V357, for > 12 month battery life time |
2,- € |
10 batteries |
18,- € |
50 batteries |
80,- € |
| Order |