Need help in selecting XBEE 868 Mhz part

Hi
Yeah the 433 mhz is a good option.. you mean it has automatic repeater
function built in? This means I can simply power up some rfm22s and leave
them repeat signals around blind spots? Thanks for the tip, I will study it
carefully.

I stil would like to hear what the Xbee Gurus say about my requirements.

I went to the WASPMOTE product web page. Seems they
have an impressive range of 'plug and play' solutions. however
its very pricey and my farmer has an end of life for this project
of 2 years.

Regds
Allan