structure has been modified to include a means for controlling the position of the actuating member 8 from a position outside the protected area with which the device 1 is associated in this embodiment the pressurized container 18 and the dispensing element 15 thereof function to operated the valve assembly 24 as previously described the major differences being the additional means for controlling the position of the slidably mounted trigger element 9 from position outside the protected area with which the device 1 is associated as shown in fig7 9 the sliding trigger element 9 may be placed into an actuatable position 14 or a inactuatable position 56 by a means for controlling the position of the slidable trigger element 9 from outside the protected area with which the device is associated the means for controlling the slidable trigger element 9 is shown for convenience as a cylinder lock 41 mounted in a hole 43 through frame 3 it is important that the cylinder lock 41 have means for attaching a thumb latch lever generally designated 48 to it wherein the thumb latch lever 48 can be moved by a key when a key is inserted and turned in the cylinder lock it is also important that the length of the cylinder lock be long enough to extend from a surface outside the protected area into the protected area so that the device 1 can be placed in an actuatable position 14 or an inactuatable position 56 from outside the protected area the thumb latch lever 48 may be attached for movement to the cylinder lock 41 in many ways for convenience the cylinder lock 41 is shown with a shaft extension 47 which is rotated by a key inserted at 42 and the key rotated to turn.