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Products > Environmental > Sentinel Controllers

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Sentinel DRT-1 Digital Recycling Timer

Accurate 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. No complicated ... More Details

Item Number: 199990

Sentinel DRT-1 Digital Recycling Timer
Usually ships in 3 to 5 days.
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$93.17

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Sentinel MDT-1 Master Digital Timer

The MDT-1 combines the function of the DRT-1 with the ability to control the photo period of your gardens HID lighting. The MDT-1 is a 100% DIGITAL Lighting recycling timer. Combines 2 main timing functions in one convenient package. Control... More Details

Item Number: 199989

Sentinel MDT-1 Master Digital Timer
Usually ships in 3 to 5 days.
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$163.98

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Sentinel UTC-1 Universal Temperature Controller

Temperature how important is temperature control inside a growing area? It should be the first priority when considering how the area will be setup. Some people in warmer climates have turned to rather expensive cooling methods such as air-conditioners. A... More Details

Item Number: 199988

Sentinel UTC-1 Universal Temperature Controller
Usually ships in 3 to 5 days.
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$108.07

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Sentinel EVC-1 Environmental Controller

Temperature Humidity CO2 . What do they have in common? They are all environmental conditions inside a growing area that need to be controlled for successful gardening. The EVC-1 Environmental Controller controls all that and more. If you want a sim... More Details

Item Number: 199987

Sentinel EVC-1 Environmental Controller
Usually ships in 3 to 5 days.
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$149.07

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Sentinel EVC-2 Environmental Controller

We have combined digital temperature humidity controls together in one flexible unit called the EVC-2 Environmental Controller. It has two additional features which activate a Night Device and a CO2 device. The EVC-2 provides the perfect combination of f... More Details

Item Number: 199986

Sentinel EVC-2 Environmental Controller
Usually ships in 3 to 5 days.
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$223.60

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Sentinel CPPM-4 CO2 Controller

Maintaining a CO2 level between 1000 and 1500 PPM is essential for most plants. The Sentinel CPPM-4 controls carbon dioxide levels with part-per-million accuracy. The dual beam CO2 sensor is the highest tech, most accurate sensor available to the hobby hy... More Details

Item Number: 136472

Sentinel CPPM-4 CO2 Controller
Usually ships in 3 to 5 days.
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$495.03

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Sentinel HPH-4 High Power Hid Controller, 4000W

When trying to control more than one HID lighting system, you can either use a bunch of timers OR the HPH-4. The HPH-4 makes it simple to control up to 4000 watts of lighting from a single timer or controller. The HPH-4 has FOUR UNIVERSAL receptacles that... More Details

Item Number: 133913

Sentinel HPH-4 High Power Hid Controller, 4000W
Usually ships in 3 to 5 days.
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$130.43

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Sentinel HPH-8 High Power Hid Controller, 8000W

When trying to control more than one HID lighting system, you can either use a bunch of timers OR the HPH-8. The HPH-8 makes it simple to control up to 8000 watts of lighting from a single timer or controller. The HPH-4 has EIGHT UNIVERSAL receptacles tha... More Details

Item Number: 133914

Sentinel HPH-8 High Power Hid Controller, 8000W
Usually ships in 3 to 5 days.
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$201.24

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Sentinel Power Expansion Module PXM-1

When you need to control larger equipment with higher amperage, or when you need to increase the number or size of the lights, fans, air conditioners or pumps in your growing area... The Sentinel PXM-1 (15 amp@120vac) or PXM-2 (15 amp@ 240vac) is the answ... More Details

Item Number: 132391

Sentinel Power Expansion Module PXM-1
Usually ships in 3 to 5 days.
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$74.53

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Sentinel Power Expansion Module PXM-2

When you need to control larger equipment with higher amperage, or when you need to increase the number or size of the lights, fans, air conditioners or pumps in your growing area... The PXM-1 (15 amp@120vac) or PXM-2 (15 amp@ 240vac) is the answer ... More Details

Item Number: 134162

Sentinel Power Expansion Module PXM-2
Usually ships in 3 to 5 days.
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$89.44

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Sentinel HID 2 Lighting Controller

The HID-2 HID Lighting Controller is the simplest and BEST lighting controller you can buy. The HID-2 has many features including a 24-hour DIGITAL time-clock that is extremely accurate and EASY to use. It has a battery backup to ensure continued funct... More Details

Item Number: 135020

Sentinel HID 2 Lighting Controller
Usually ships in 3 to 5 days.
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$125.47

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Sentinel HAC30A Hi Amperage Controller

When trying to remotely control large amperage equipment such as air conditioners or heavy-duty fans, you need a device like the HAC-30A. The HAC-30A makes it simple to control up to 30-amp @ 240 volt devices from a single timer or controller. An inte... More Details

Item Number: 135021

Sentinel HAC30A Hi Amperage Controller
Usually ships in 3 to 5 days.
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$119.25

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Sentinel CHHC-4 Day/Night Environmental Control

The CHHC-4 controls all of your growing area conditions accurately and reliably. First of all, it has all of the C02 control features of the CHHC-1 and CPPM-1. It also has the ability to control 3 other devices, a heating device and a humidity device. Rec... More Details

Item Number: 135163

Sentinel CHHC-4 Day/Night Environmental Control
Usually ships in 3 to 5 days.
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$596.27

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