This TSS multipoint door lock features 4 Rollers, 1 Deadbolt & 1 Latch.
Operation: Lift Lever
To lock the door
1. Lift the handle upwards to engage the locking points.
2. Lock the locking points and main deadbolt (if present) by turning the key.
To unlock the door
1. Unlock the system by turning the key.
2. Push the handle downwards to disengage the locking points and retract the latch.
You may find this lock used as an UPVC door lock or an aluminium door lock.