Falcon Dual Zone Microwave Radar Proximity Sensor for car alarm

Works well no hand book with it though,

Still trying to fine tune to prevent false alarms, no problem with this does take some time to get right if you leave your car on a road, off road parkers should be fine. Very good product. The reason I will only give it three stars is due to the lack of information which comes with the unit! For example should the unit be fitted facing any particular direction, which is the front or rear of the sensor or does it not matter? This is important as the unit creates a bubble around your car, they need to be centrally mounted, therefore it is closer to you passenger door than the front rear of your car. Some of these units should be fitted in a particular direction to compensate for this

thank you