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Title: Chamberlain must have changed the electronics....
Review: Based on the good reviews on this product, we bought a system and several sensors this winter. I spent a week trying to make them work, and exchanged them twice, thinking I may have had a bad unit. I could never get more than 100' feet of distance, making the units useless for our purpose. I returned them the final time, and bought a sub $20 unit (similar to the Driveway Patrol unit), and got almost 400' of distance down the driveway, which is enough unit I can find enough positive reviews for some more expensive models.Sadly, these recent units made by Chamberlain are not worth the money spent, and they will not achieve the range advertised, even in perfect line-of-sight conditions, at least for the three sets I tried.
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