"I bought this unit 6 years ago and It's works good. I keep the grass trimmed around the sensor and across the driveway from the sensor. High grass that's is in the sun seams to trip the sensor if the"... (read full reviews)
"So far I have had two. The problem is after a year or so the unit quits detecting anything. Of course I changed the batteries. The symptoms are when you wave you hand over the sensor, occasionally it"... (read full reviews)