433MHz modules

I am looking for cheap 433MHz modules for 2400bps data transmission (data sheets and where to get them from).

plz let us know your location first then we can suggest.

Among the few manufacturers of such modules are:
1. Laipac Technologies.
2. Keymark
3. Oatley Electronics

There are many more. Datasheets are available for download in their sites.
Hope this helped.

Giri

More manifacturers:
www.radiometrix.co.uk
www.rfsolutions.co.uk

linxtechnologies sells easy to use modules, but they're more expensive. you could use chipcon, but you may have difficulty programming them.