Parking Sensors

I think I recently saw some wireless parking sensors advertised. I am hoping to get a new Vauxhall Insignia which will need them. Can you recommend an alternative to the factory fitted option, and how...

Make sensor this

Thank you, thank you, thank you. My email to you of 20th April complained about a parking sensor fault on my XJ. My Jaguar dealer offered to fit two new sensors (one front bumper and one back) and paint...