No longer need this excellent and small PCAS as its functions are
included in the PowerFlarm I've just installed.

IMO, no question the PF is the best answer for practical collision
avoidance in gliders. But if for whatever reason you won't be buying
one, then this Zaon MRX is the next best thing for a whole lot less
money. The MRX sells new for $450 - $499. Mine is line new, less than
20 hours, with all original packaging and manual for only $300 plus
$12 shipping in US.

bumperm frontier (insert the usual at and dot com stuff)