Master Digital Timer

Combination Recycling and Lighting Timer

The Autopilot Master Digital Timer (APCTMDT) is designed to control lighting and recycling functions within your grow area. The MDT has dual timer functions, a 24-hour time clock for lighting and a recycling timer for pumps or CO2 injection. The MDT has 4 receptacles: one receptacle controls a pump or other recycling device. Two receptacles are for “daytime” devices such as lights and light movers. One receptacle is for a “night” device, which would turn on during the nighttime.

The MDT features a “high temperature shutdown” function that will detect unsafe (high) temperatures in the grow room and turn off the HID lights in the event of a ventilation failure. The MDT also features a “hot start” protection to ensure proper lamp cooling before attempting to restart. The precise cycle timer can be programmed anywhere between 1 second and 96 hours. The MDT has been designed to be reliable and user friendly. Autopilot controllers offer simple grow room guidance.

  • Precise digital time clock with battery backup
  • Adjustable high temperature shutdown
  • Adjustable hot start prevention
  • Up to 1200 watts direct plug-in lighting control
  • Control in excess of 1200 watts with additional high power light controllers (sold separately)
  • Recycling on/off range – 1 second to 96 hours
  • Three foot remote temperature probe
  • Pre-programmed factory settings for quick plug and play operation


9"H x 7"W x 4"D, 15A max/120v


learn more


Analog 24hr Recycling Timer

Precise Cycle Timer with Day/Night Detection

The Autopilot Recycling Timer (APCTART) by Hydrofarm controls any application requiring a device to be turned on and off at precise intervals. The APCTART timer has a wide range of uses including controlling hydroponic pumps, CO2 injection, turning on and off exhaust fans, misters, etc. No programming required. Easy to set and operate. The APCTART has adjustable “ON” time of 15 seconds to 5 hours and an “OFF” time of 15 seconds to 13 Hours. Cycle timing is user adjustable for operation during the day, night, or 24-hours. 3-year warranty.

  • Controls 120 volt equipment such as pumps or fans on a periodic repeat cycle
  • The ON duration spans from 15 seconds to 5 hours
  • The OFF duration spans from 15 seconds to 13 hours
  • The unit can function during the day, during the night or 24 hours
  • APCTART Timing ON: 15 Seconds to 5 Hours
  • APCTART Timing OFF: 15 Seconds to 13 Hours
  • Built-in Photocell


6"H x 3"W x 4"D, 15A max/120v


learn more