I would like to add additional sensors for my weather station. Is this possible?
You cannot add a second sensor to your existing weather station listed below, but one of the products below would allow you to add sensors to AmbientWeather.net which are then seamlessly integrated online (you can add as many devices as you wish to AmbientWeather.net).
Here are a few of options:
The WS-50-C supports up to 8 thermo-hygrometers (F007TH), floating pool, spa and lake thermometers (F007PF) or temperature probes for any medium (F007TP).
The WS-0265 supports up to 8 remote thermo-hygrometers (WH31B).
The WS-8482 supports up to 7 thermo-hygrometers (TX-3110B), pool, spa and pond thermometers (TX-3107) or soil temperature and moisture sensors (TX-3102).