Instructions: Enable public mode 1. Enter the correct management password "****+OK" key, the buzzer "di..." a long beep, the unlocking light is always on. 2. Press the OK button again for more than 2 seconds, the lock flashes, press the OK button again. 3. Enter the numbers "4, 4" and press the "OK" button, "di .." a long beep. Set temporary password 1. Press the OK button, the unlock indicator flashes. 2. Enter the 4~15 password to be set. 3. Press the OK button, the buzzer beep for a long time, and the lock be opened and stored. The temporary password is set successfully. After entering the standby state, the light of the electronic lock flash every 3 seconds. *The temporary password can only be used effectively once, and it automatically become invalid after use. Turn off public mode 1. Enter the correct management password "+OK" key buzzer "di..." a long beep, the unlocking light is always on. 2. Press the "OK" button again for more than 2 seconds, the lock flashes, press the OK button again. 3. Enter the numbers "4, 3" and press the "OK" button, a long beep "di...". Maximum installation thickness: L = 20mm Colour: black Material: ABS Size: 95 x 33 mm Package Contents: 1 * Code Security Lock 1 * Mounting panel 1 * Mounting nut 1 * Mounting screws