Using Ultrasonic sensor from car parking kit

[HatemDarweesh]

Hello,
I want to save some money, and instead of buying ultrasonic range finder for my robot, I want to use the sensors that come with car parking assistant.
my question is, how I connect these sensor to Arduino controller. or any other controller.
for the record the Ultrasonic range finder which made for robotics has 3 connection lines (pwr, gnd, data) but the car parking sensor has just two wires !!.

Thanks in advance.

 

[donkey]

photos and model number will help greatly.
also for less then $2.50 you buy the part and it has an exstensive library already. so you know it will be "supported" by arduino.
http://www.ebay.com.au/itm/270915825002?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

 

[HatemDarweesh]

Thank you, that will solve the problem
I was buying sensors from robotshop.com , but the prices on ebay is very attractive .
I already made and order with 5 pieces.
thanks again.

Regards,