... bolt Low Temperature Autolock Time Delay: 0,3,6,9sec. signal output contact(NC.COM) Fail safe electric drop boltVoltage:DC12VStart ... DoorSurface Temp: Low TemperatureAutolock Time Delay: 0,3,6,9sec.Signal Output: Door status Output,NC/COMInduction Distance: 8mmOperating temp: -10 ...