Thinking of buying a pronto NG from the US. Little confused of the requirement for the RF extender. Bascially I want to use the pronto to control a RF module on my owl screen to lower / raise it. (all in the same room) Do I require the RF extender to do this? Or can the Pronto NG / Pro control a RF device directly. All I have read state the RF extender can control devices in other rooms etc. etc. not really after that just want to send RF signals to control a RF device. Dont want to waste and cash un-necessary. Many thanks Kentlad.