Has anyone used any of the passive traffic alert systems that are out on
the market today? I saw this one on AircraftSpruce sight .4 AMU's
instead of the usual .8 AMU's. I did some searching and found out that
this particular model is discontinued hense the half-price sticker.

Has any of you flown with this kind of device and how do you think it
does for spotting traffic I flew with a guy last year that had this
exact model in his 182 and it seemed to work well.

Here is a link to the specs:

http://www.surecheck.net/library/ts_datasheet.pdf

Jon Kraus
'79 Mooney 201
4443H @ TYQ