• Can suit both left and right hand door( by rotating the lock 180 degrees) 
• No (open when power) fail secure operating mode 
• High quality, high anti theft and high safety 
• Double lock head inside and outside 
• With electronic control unlocking unit and spring adjusting balance unit 
• Easy to install user-friendly 
• Support manual unlocking 5 keys computerized 
• Lock operational with 12-24 v dc