1.code locker lock2.keyless, and safe 3.wholesale price 4.if lose password, get unlock code from us 5.2 AAA battery code locker lock for office,school  1.  code locker lock  advantages: 1.password open lock2.keyless, and safe 3.wholesale price 4.if lose password, get unlock code from us by summiting the serial number on lock to us5.2 AAA battery can provide in excess of 20,000 openings6. easy installation7. User codes are 1 -8 digits long, over 80,000 codes available8. A brief alarm after entering incorrect codes 4 times 9. Low battery warning, over 100 operations after warning.  2.  code locker lock  specification  Working VoltageDC3V (2 x AAA battery  )Power ConsumptioStatic current ≤15uA, Dynamic current≤250mAWorking temperature-25oC ~ +65oCWorking humidity10% ~ 95%Password1-8 digits longAnti-jammingAir discharge 15KV , Contact discharge 8KV  3.  code locker lock  certificates: CE     4.  code locker lock  suitable for drawers, lockers in office,schoole etc