outdoor "car" type ultrasonic range sensor

[Phil]

You may have seen ultrasonic range sensors on the rear of many late model
cars. Where does one buy a set from at a reasonable price? I want to make
this kit up:

http://www.rev-ed.co.uk/docs/SRF004.pdf

but it comes with the usual sensors which are probably not immune to the
elements. By the way, microzed are selling these at $48. Has anyone seen
anything cheaper anywhere? I need at least 3.

Cheers,
Phil

 

[Rob]

"Phil" <haxby@removethisbitandjustleave dodo.com.au> wrote in message
news:40051968$1@news.comindico.com.au...

You may have seen ultrasonic range sensors on the rear of many late model
cars. Where does one buy a set from at a reasonable price? I want to make
this kit up:

http://www.rev-ed.co.uk/docs/SRF004.pdf

but it comes with the usual sensors which are probably not immune to the
elements. By the way, microzed are selling these at $48. Has anyone seen
anything cheaper anywhere? I need at least 3.

Cheers,
Phil

Farnell sell some sealed units, from memory they are about $20 each.
rob