That’s it. Microwave-based motion sensor board on top, controller board for LED ceiling light underneath. The power adapter is straightforward in that it accepts 100-240 Volts AC and turns it ...

The vehicle didn’t trigger the sensor, so cycle after cycle went by and the traffic system never gave the left turn lane a green light, thinking the lane was unoccupied. Had the driver known ...

But on occasion, someone stops too far back or pulls too far over the line, where the traffic light sensor can’t detect ... intersections and freeway ramps. Microwave sensors are efficient ...