"BERNSTEIN" MAC-02OS MECHANICAL CODE DOOR HANDLE, 14-button version, for increased security. Stronger handle construction. No batteries required. Fits a standard 72 mm cylinder. Ideal for outdoor use. Instructions in Polish. The cylinder/lock shown in the photo is not included. It only illustrates how to install the escutcheon. HOW IT WORKS: On the back of the outer housing (i.e., the one with the code lock), there are marked knobs that correspond to the code lock button numbers. To set the code, turn the knob towards the letter G for the selected digit. To deactivate a given digit, turn the knob towards the letter F. All or some of the buttons can be used to set the code; remember that the order in which the buttons are pressed is irrelevant, e.g., when using the numbers 2, 3, 4, and 7, you can press them in any order. Using 4 digits provides the greatest security. TECHNICAL SPECIFICATIONS Waterproof: Yes, IP44 ; Colour: black ; Universal handle: Yes, for left and right doors ; Designed for doors with a thickness of: from 28 mm to 56 mm ; External handle dimensions: 238 x 42 x 25 mm ; Internal handle dimensions: 238 x 42 x 18 mm ; Distance from the door face to the handle axis: 60 mm ; Operating temperature range: -10oC +45oC ; SET CONTENTS Internal escutcheon; Positioning pad 2x; External escutcheon; Pin; Mounting screws 4x; Tie bolts 3x; User manual; Mounting templates; IDEAL FOR OUTDOOR INSTALLATION Thanks to its solid construction and the lack of any electronic components, the handle is ideal as entrance protection for garbage cans, warehouses, technical rooms or storerooms.