Check if the batteries are inserted correctly or try a 9V emergency battery.
When you are inside, slide the "Double Lock" switch to the red position. This prevents the door from being opened from the outside, even with a valid PIN or card. gateman v20 manual
Enter your desired on the exterior keypad. Press the [*] button or the [I] button again to complete. 2. Registering Key Tags (RF Cards) The V20 supports key tags for quick, "tap-and-go" entry. Open the battery cover and press the [I] button. Check if the batteries are inserted correctly or
There is a toggle switch inside the battery compartment. Auto: The door locks automatically seconds after closing. Enter your desired on the exterior keypad
When the batteries are low, the lock will play a specific melody (often "To Elise") after every use. Change them immediately.