Unlocked without pressure
The strike is locked for as long as the compressed air is switched on. If the pressure is switched off or is interrupted, the keeper can be moved and the door can be opened.

Pneumatic strike EX138P
Adjustable keeper (FF, FaFix®), Unlocked without pressure

Pneumatic strike EX138P1
Adjustable keeper (FF, FaFix®), Unlocked without pressure

Pneumatic strike EX138P3
Adjustable keeper (FF, FaFix®), Unlocked without pressure

Pneumatic strike EX138P4
Adjustable keeper (FF, FaFix®), Unlocked without pressure