The new PeakTech 5039 is a low-cost thermo-hygrometer for simultaneous measurement and display of ambient temperature and humidity in a handy design. In addition, this model offers a wet bulb temperature measurement, which is the lowest temperature that can be achieved by direct evaporative cooling. Furthermore, this model can measure the dew point temperature, which must be undercut in order for fog or dew to form from water vapor. All measured values can be easily read on the large LCD display with backlight. This inexpensive and compact measuring device is ideal for use in the construction sector, building services or heating and air conditioning.