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  Recycling timers and HID timers DRT-1 HID-1 MDT-1  
  Digital timer Yes Yes Yes  
  Recycling timer (pumps, fans etc.) Yes   Yes  
  24-hour digital timeclock (lighting)   Yes Yes  
  Digital display Yes Yes Yes  
  Easy to use pushbuttons Yes Yes Yes  
  Timer manual over-ride Yes Yes Yes  
  Battery backup   Yes Yes  
  Selectable modes day / night / 24-hour Yes   Yes  
  Remote temperature probe   Yes Yes  
  Recycle timer in seconds, minutes and hours Yes   Yes  
  HID photoperoiod lighting timer   Yes Yes  
  Hi-temperature HID lights shutdown   Yes Yes  
  Hot-start HID lamp protection   Yes Yes  
  Night time device outlet   Yes Yes  
  3-year warranty Yes Yes Yes  
           
*All of Sentinel's timers are 100% DIGITAL so there is no guessing what the settings truly are.            *Each timer is pre-wired and come standard with a re-settable circuit breaker for protection against overloads.                                                                                                                                                                 *A battery backup in the HID-1 and MDT-1 ensures no time is lost in the event of a power failure.