Grove - 433MHz Simple RF link kit

Could this be used as a wireless sensor node? Can the transmitter be powered by solar and contain a Grove input sensor?

The reason to use this one is the price. Would like to keep a sensor node below a certain price (below $35).

Of course that both of functions you said can be used. For the price , the question is you want to contain what a Grove input sensor and you want to achieve what use.

best regards,