How does folding arm boom gate work in the parking lot 

Sintronic folding arm boom gate (foldable parking barrier gate) is specially designed for underground parking entrances and low-ceiling scenarios, where standard straight boom gates cannot fully lift due to height restrictions.

When the gate receives an opening signal from card readers, LPR cameras or remote control, the boom arm folds in two segments. Instead of rising vertically in a straight line, the arm bends to save vertical space. Once fully folded, vehicles can pass smoothly. After the vehicle passes the loop detector, the boom arm unfolds and drops back to the closed position to block unauthorized entry.