The GMXP3/Z lock protection is a combined device, which is supplied as a
GMXP3 but providing the installer to convert to a GMXP3Z if required.
The GMXP3/Z is used in conjunction with a GM7xx seismic detector to
monitor safe and strong room doors with exposed keyholes. A micro-switch
fitted in the swivel plate monitors every movement of the swivel arm and
triggers an alarm when unauthorized access is attempted. The swivel arm
is made from hardened steel and fully covers the keyhole when the system
is armed. When the system is disarmed, the swivel arm can easily be
rotated by 90° to enable unimpeded access to the keyhole. The GMXP3 can
be used for lock roses that protrude up to 4mm. The Z shaped swivel arm
of the GMXP3Z allows installations on even larger lock roses that
protrude up to 24mm.