Product overview – Vaisala HM40 User Manual
Page 5

4
Product Overview
The Vaisala HUMICAP
® Hand-Held Humidity and
Temperature Meter HM40 is a hand-held meter for
various portable measurement applications.
Main features:
- Compact and robust housing.
- Measures a wide range of parameters: RH, Td, Tw, a, x,
h, T. See section Parameters Explained on page 11.
- Large graphical display.
- Graphs for selected parameter and temperature.
- Interchangeable HMP113 probe.
- Available with standard probe or remote probe handle.
- Can be user calibrated (using the HMK15 humidity
calibrator, for example).
- Powered by standard AA size batteries (2×).
- Operation temperature range -10°C ... +60°C.
- Belt clip.
Optional:
- Membrane filter for HMP113 probe 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 40.