ES-25      (Ver 1.0)  (Discontinued)     Digital Code Lock   ( DC 9V)    (relay contact : 2A)

DISCONTINUED :  Newer version (ES-25) available

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This combination lock can be "unlocked" by entering a 3-digit secret code (720 possible combinations) 

To lock    : (
energizing the relay) Press any key except the key corresponding to the first digit of the secret code.
To unlock
: (de-energizing the relay) Enter the secret code thru the keypad.  Each digit must be entered with the correct sequence. The relay will be de-energized once the correct code is entered