The adjustable GERDA cylinder is necessary for mounting the tedee smart lock if the Nordic adapter does not fit your door. GERDA SLR cylinder lock module with a toothed rod makes it easy to install the Tedee lock on your door. The modularity of the cylinder lock ensures a complete amount of size adjustments from the inside of your door. 30 to 61mm sizes are available for the inside. The cylinder lock is equipped with a permanent 30 mm size on the outside (key side).
