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TECH MASTER VIDEOS

INSTRUCTIONAL:
HOW TO CHANGE
A MANAGER CODE

INSTRUCTIONAL:
HOW TO CHANGE
A USER CODE

INSTRUCTIONAL:
HOW TO DELETE
A USER CODE

INSTRUCTIONAL:
HOW TO CHANGE
THE KEYPAD BATTERY

TROUBLESHOOTING:
ERROR ON I/O INTERFACE

TROUBLESHOOTING:
HOW TO TEST THE MEMBRANE

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