There are two things that need improvement to get the highest rating. Antennas broke too easily. I find the turned metal parts too dainty. I was able to solve my problem by connecting a copper wire that was longer than the antenna that came with it and improved reception better than the original, so all the best. The switch that controls the fixture number is very, very small and difficult to install. I solved this problem by making it Device 1 instead of wasting a day moving the slider 1/2 millimeter left or right. Bad design.
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