Technoline TX 35 DTH-IT Thermo-/Hygrosens

Your station does not receive any outdoor temperature despite battery change according to instructions and / or reset? Then your transmitter may have a defect.
But no problem, now you can replace the transmitter without having to invest in a new station. (Please note the compatibility of the sensor with the stations)
JeeLink, FEHM – Part of a proper smart home is measuring the temperature and humidity in each room. However, this can quickly cause hardware costs to skyrocket.

To build your own JeeLink you need an Arduino Nano and a RFM12B for 433 / 868 Mhz. As a sensor the TX 35 DTH-IT is a much cheaper alternative. Only recommended for real tinkerers and technology enthusiasts.