Automatic boom barrier price fence barrier

 
Safety--- Anti-hit by pressure resistance bounce
While moving down,arm will immediately go back to vertical position once it is obstructed by an imposed force, which protects the vehicle or person not to be hit by boom arm. The sensitivity is adjustable.

Safety--- Anti-hit by Loop Detector (Optional)
While barrier boom moving down, If a coming vehicle was detected to be existing on the ground induction coil, the arm will go back to vertical position immediately until loop input was dismissed and then the arm will go down immediately.

Safety--- Anti-hit by IR photocell (Optional)
While arm moving down, If infrared transportation between transmitter and receiver is blocked by human or vehicle, the arm will go back to vertical position immediately. The arm will automatically close once the infrared transportation recovers.

Automatically open by loop detector (Optional)
If loop detector is installed, when barrier boom is in horizontal position, the barrier boom will go up immediately once the loop input was triggered

Manually control in case of no power 
Once power is off, just open the cabinet and manually control the barrier by a gear mechanism. Also barrier boom can be manually locked in any position between horizontal and vertical, the lock status will remain until unlock manually.