Vaisala HM42 - Page 9

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Main features of the HM40 series:
- Compact and robust housing.
- Measures a wide range of parameters: RH, Td, Tw, a,
x, h, T. See section Parameters Explained on page
15.
- Large graphical display.
- Graphs for selected humidity parameter and
temperature.
- Can be user calibrated (using the HMK15 humidity
calibrator, for example).
- Powered by standard AA size batteries (2×).
- Indicator operation temperature range -10°C ...
+60°C. Probe operation temperature ranges
-40 °C … +180°C, depending on probe model.
- Short (HM41/HM45) or long (HM42/HM46) soft
case, depending on probe length.
- Belt clip.
Optional accessories:
- Different filters for increased protection against
contaminants.
- USB-powered portable charger for AA-size NiMH
rechargeables.
For more information and order codes of the
accessories, see section Accessories and Parts
on page 53.