RXB17: 868 MHz Transceiver

Some Chinese sellers offers this very cheap transceiver. How can it be used with an Arduino or another controller? I cannot find a hint in all offers at the net.
Has some experts an idea?
A picture is attached.

If the sellers of the module wont provide advice, is it worth the risk to buy it ?

And why do you want to buy it in the first place ?

My intention: I want to observe the outside measuring point of my weather station via Arduino.
And I hope for a helpful answer.