HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Need more than 1? Get a bulk buy discount up to 20% off With 4 high sensitive sensors and double CPU/advanced chip set this system has enhanced coverage and detection ability (0.3 - 2.5m) it can detect small children and low walls as well. This system is anti-freeze and rain proof. Sound alert andspan>digital coloredALED display help to provide increased Safety for passengers pedestrians and family members who happen to be around the moving vehicle.AThe closer the obstacles the louder and faster the sound alert. A saw drill head is included. You Will Receive: 4 x parking sensors set