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Not sure which Controllers are right for you?
Download the Controller selector chart
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Controllers
Temperature should be the first
priority when considering how the
area will be setup. Some people have turned to
expensive cooling methods such as air-conditioners. A simpler (and cheaper) temperature control method is to use ventilation fans to remove the hot, humid air and bring dryer, cooler air into the growing area. To control the fan, a thermostat is used. The thermostat will turn the fan ON and OFF as required.
The UTC-1 controller works the same way...only better. Want to also control Humidity and CO2...try the EVC-1 or EVC-2 or just a simple, inexpensive temperature control device like the COOL-1
UTC-1 Universal Temperature Controller
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Different Day and Night temperatures settings
- Records the minimum and maximum temperature readings
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Has 2 receptacles that can control up to 15 amps of power
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Can control heating or cooling devices
- Adjustable "Hysteresis" or "dead band" allows the user to customizethe unit
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EVC-1 Environmental Control (Analog)
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Reliable and simple to use
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Temperature and humidity modes allows the user to control them together or separately
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Can be set to increase or decrease humidity to a specified level
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Built in photocell activates CO2 device during the day
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Night device outlet can control an exhaust fan / sulfur burner, etc.
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Most cost effective analog controller on the market
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EVC-2 Environmental Control (Digital)
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Combines digital temperature
& humidity controls together in
one flexible unit
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Two additional features
which activate a Night Device
and a CO2 device.
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Controls your Temperature &
Humidity separate or together with DIGITAL accuracy.
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Photocell allows day / night temperature & humidity settings and also provides daytime CO2 operation.
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Remote combination temperature and humidity sensor probe with 15 foot cable
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Easy to use with each function clearly identified by a pushbutton and a large LC display
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Record & recall minimum and maximum temperature & humidity levels.
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Two temperature modes, Heating & Cooling.
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Separate humidity control to add or remove humidity.
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Adjustable temperature dead band.
Remote Temperature and humidity sensor has a 15 foot cable to allow for measuring at plant level

Cool-1 Cooling Thermostat
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Simple to use, set the temperature anywhere between 51` F to 115` F, the device turns on and off when the temperature changes.
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Remote bulb thermostat can be placed 30 " from the unit
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Big easy to read knob for setting temperature
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Any cooling device operating on 120 volts, 15 amps or less can be plugged in to the COOL-1
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Plugs directly into wall socket, red indicator lights when there is power
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Can be configured for use as a "heating" thermostat or high temperature shutdown
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