... 3.Low energy consumpition 4.CE,FCC certificat SpecificationC3000DL New Electronic Drawer Lock 1.Work with EM/ID/MF1 ... .Low energy consumpition 4.CE,FCC certificatedFunctions and Features C3000DL New Electronic Drawer Lock - 3-lever management- Keypad with background ... unlocking under the voltage DC4.2V+/-0.2, notifies to replace new batteries. Basic Function -Four levels of management: Mother card, ...