Performance Index Applicable card:TEMIC contactless RF card or MIFARE ONE contactless RF card. Power supply: 4pcs standard AAA alkaline batteries. Battery life: About 10 months in normal state, depending on usage and climatic conditions. Low voltage warning: When power’s voltage is less 4.5V, there will be warning when unlock. The lock still can be unlocked about 100 times before the batteries are replaced. Static consumption: 12uA Dynamic consumption:200mA Open time: The lock will be locked again automatically 7 seconds after unlocking. Reliability of card operation: No accident for 1000 times of continuous card operation. Emergency unlocking:The door can be unlocked by Master Card or Mechanical key even though the deadbolt works. Installation request: To be installed on the door, with the door thickness between 42mm to 100mm, and if the door surface is decorated, the distance between the decoration edge to the door edge must be over 110mm. Panel size:270mm( Height) ×73.8mm (Width) ×16.5mm (Thickness). Mortise size:270mm( Height)×106mm (Width)×23mm (Thickness). Weight: 3.0Kg Material: Alloy Handle orientation:left hand push to open, right hand push to open; left hand pull to open, right hand pull to open.