... polishing housing, 800Kg Holding Force Suitable For: Woodeng Door,Glass Door,Metal Door,Glass DoorInduction Distance:8mmSurface Temp: Low TemperatureEL-2001B, ... EL-2001D,EL-2001E: Door lock delay time: 0/ 3/ 6/ 9 seconds available ... point,NC/COMEL-2001E: Signal Output: Built-in door open or door close state detection output point,NO/NC/COMMOV surge protection ...