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Not sure which Timers are right for you?
Download the  Timer selector chart
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Digital Timers & Lighting Controllers
Accurate, Reliable timers are important for a variety of processes. Hydroponics gardening is no exception. Sentinel has developed TWO timers that are specifically designed to control the critical “timing” functions of a normal hydroponics garden.
The DRT-1 and MDT-1 offer 100% digital design for precision along with an extremely wide range of time delays.
DRT-1 Digital Recycling Timer
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Control pumps or other devices that
must be activated on a
repeating cycle
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Offers an extremely wide range of
time delays.
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Single function pushbuttons for ease
of use and programming.
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No
complex menus.
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Easy
to read LED display.
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100%
DIGITAL recycling timer.
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ON &
OFF times can be programmed in
hours, minutes & seconds.
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Photocell allows daytime, nighttime
or 24-hour operation.
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Two
receptacles control up to 15-amps of
power.
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Re-settable circuit breaker
built-in.
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MDT-1 Master Digital Timer
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Coordinates 2 main timing functions in one convenient
unit. It combines the function of the DRT-1 with the ability to control the photo period of HID Lighting in a 100% digital timer
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Connect up to 1200 watts of HID lighting directly or use with HPH-4 or HPH-8 to connect as many lights as you want to control
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Control HID lighting schedules with 24-hour time clock.
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Integrated digital recycling timer can operate daytime, nighttime or 24 hours a day.
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Digital recycling ON & OFF times can be programmed in hours, minutes and seconds.
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Press and hold to display
current temperature.
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HI-Temp protection will disable HID Lights if the temperature exceeds the maximum level set by the user
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If overheating happens, the unit
logs the max temperature and the
time it occurred.
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Hot start prevention monitors the incoming power and will disable the HID lights in the event of a power failure. After a user adjustable delay, the HID lamps are permitted to re-start.
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Remote Probe can be located up
to 4 feet from unit
- Re-settable circuit breaker built in
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