With a Q-Sensor you never again have to monitor a traffic jam or a queue. Attach the Q-sensor to your mirror or windshield and connect it to your cigarette lighter. Q-Sensor will alert you when the gap before you will increase. So you can do more exciting things and still be fully present when things are moving again.
– Parkmatic Powerline parking sensors, 4 sensors, buzzer has not yet received any ratings. –