Available from DoorKing, Inc.
DoorKing provides a family of vehicular gate operator products and accessories for residential, commercial, industrial and maximum security applications. DoorKing gate operators designed for general access applications (9050, 9070, 9100, 9150) utilize a unique fail-safe entrapment prevention design that exceeds the requirements of the UL 325 safety standard. Most gate operators simply "lock-up" when an entrapment condition exist and require a crank, key or other release device to free the entrapment. When a DKS gate operator senses an entrapment, two important things happen:
The gate operator stops and activates an alarm as required by the UL safety standard.
The gate operator assumes a fail-safe condition that releases pressure on the gate and allows the entrapment the opportunity to free itself without outside intervention. This feature exceeds current industry safety standards.