Initial Setup
maximum number of 15 allowed, the higher level of security you will have. (If you enter more digits than can display on one screen, the screen will shift to the right.)
It is very important that for your Logio master passcode you use random numbers that nobody else will be able to guess. Numbers that are not random sequences, such as 11111111, 12345678, 87654321, and 11223344 must be avoided.
One good way to memorize a long and random passcode is to remember a “passphrase”, which is a randomly found or made up sentence, such as “All I ever do is eat and sleep” (passphrases that are common expressions, such as “A fool and his money are soon parted”, must be avoided). The first letter (or second, or last, whatever you choose) of each word in the sentence corresponds to a particular button on your Logio keypad. In our example, the letter “A” in the word “All” is
the number “2” because “A” and “2” are on the same button 
. In our example we have eight words, and if you used the first letter of each word, you would be entering 24334327 since these buttons contain the letters AIEDIEAS. So, if you use this passphrase technique, for your master passcode you are memorizing words and are in your own mind entering letters instead of numbers. But since Logio only recognizes numbers for the master passcode, you would not push the buttons on Logio multiple times to choose a particular letter. For example, pushing the “2” button one time on your Logio when entering a master passcode could mean “A”, “B”, “C”, or “2” to you, but to Logio it is just a “2”. So that means regardless of whether want to enter an “A”, “B”, “C”, or “2”, you would do the same thing, namely, push the “2” button one time only.
When entering your master passcode during the initial setup and every time you turn on your Logio, each number you input will display on the screen with an asterisk to “mask” the number you are entering so nobody can see it over your shoulder:
When you are done entering your master passcode, push 
.
If you enter more than 15 digits, your Logio will not accept them. If you enter less than eight digits, the screen will display:
Logio User’s Manual, page