Multifunction electric bolt lock (12-24V) Low Temperature Autolock Time Delay: 0,3,6,9sec. signal output contact(NC.COM) Multifunction electric bolt lock (12-24V ... Force Suitable For: Woodeng Door,Glass Door,Metal DoorSurface Temp: Low TemperatureAutolock Time Delay: 0,3,6,9sec.Signal Output: Door ...