The NATIONAL GEOGRAPHIC thermo-hygrometer offers the possibility to measure temperature and air humidity in or around your house at 4 different locations, with simple monitoring at one location: Is my cellar room too moist and threatened by mould? Is the children's bedroom temperature all well? Is it too hot on the terrace? There are many more options open.
The three sensors deliver the data sets over 433 Mhz radio frequency to the master station, which also measures temperature and humidity.
Battery powered by 3x AAA / LR03 batteries (mainstation) and 6x AAA / LR03 batteries (for the three sensors).
SCOPE OF DELIVERY