I installed 3 of these in 3 weeks and the led is still blinking on the original batteries. Tip #1: The battery compartment is accessible via the front screw. The top screen does not need to be unscrewed. Tip #2: Before assembly, hide the false cable behind the mounting plate to keep the cable secure. I didn't do that on the first two, but the cable stayed in place. But I bet a strong wind will rip the cable out if it's not secured.
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