Inexpensive RF PIR
Experimenting today with an external RF PIR that is currently selling on eBay for £7 (inc P&P). This unit works well with the BBSB variant of the HAH RF Rx kit.
Seems to give a decent signal too, in that it operated all the way to the end of my garden.
Search eBay.co.uk for 'byron rs13'.
I got a free byron remote plug adaptor also... (I did order one for my drive and another for my decking otherside of house).
Still, I only paid single postage, so very good value. Got one working, but rain delayed play for the other :(.
reduced price 4.99 incl P&P just bought 2 :) on fleabay search
Byron RS13 Outdoor P.I.R remote control
item number 280903528136
no idea about seller (bought before no probs but)
All good no problems.
said std delivery but arrived recorded so for 9.98 i have 2 ext pir sensors :)