REDD Alert™ is an enhanced safety feature that is only Available on the Renlita Custom Opening Solutions' REDD™ motor. Top of the line obstruction sensing technology will stop and reverse the closing if it sense pressure against it. Unlike sensing edges, REDD Alert™ technology does not require the obstruction to hit the edge to recognize and reverse. Instead, REDD Alert™ can recognize an obstruction from all sides and edges. Working alongside Renlita's patented failsafe device and photo eyes, the REDD Alert™ helps to make Renlita Custom Opening Solutions the safest brand in vertical opening systems.