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Greenhouse Environmental Controls

Note: All electric products must be installed in accordance with local codes

All items this page include shipping to continental US

 

Timers, Photo Controller, Cooling Thermostat, Humidity Controllers, CO2 Controllers, Multi Function Controllers (Control multiple functions: Lights, CO2, Irrigation,  Humidity, Temperature), Power Modules

Timers

Eco Plus 24 Hour Programmable Timer

Eco Plus 24 Hour Programmable Plug in Timer

Dual Timer with Large display. Easy to use. This timer has tabs which are equivalent to 15 minutes. You simply push in the tabs when you want your equipment running. Rated for 15 amps. Programmable at 15 minute intervals.

Product Number Product Description Price
734100 24 Hour Programmable Timer $29.95 Add to Cart

Eco Plus Digital Plug in Timer

Eco Plus Timer

Dual timer with easy to use large display. Rated for 15 amps.

Product Number Product Description Price
734105 Eco Plus Digital Timer $34.95 Add to Cart 

24 Hour and 7 Day Electronic Plug - in Timer

24 Hour and 7 Day Electronic Plug-in Timer

Features 12 programs (6 on; 6 off) / programming: 1 minute intervals. Built-in battery for reserve carry-over. Easy to program. Manual switch. Grounded 3-conductor plug and receptacle.

Switch Rating: 15 amps resistive @120VAC
Ambient Temperature Range: 14°
Product Number Product Description Price
734045 24 Hour and 7 Day Electronic Plug-in Timer $39.95 Add to Cart

7 Day Programmable Heavy Duty Grounded Digital Timer

7 Day Programmable Heavy Duty Grounded Digital Timer

Controls all types of loads, such as lamps (including fluorescent), providing up to 14 ON / 14 OFF settings per day or 98 ON / 98 Off settings in a week. It plugs directly into wall outlet (3-prong grounded plug and receptacle). Easy-to-set hand-held programming , LCD digital clock and readout with “to-the-minute“ setting for accuracy. Features a manual override.
• Battery backup - batteries included
• Maximum ON time: 6 days, 23 hours, 59 minutes.
• Minimum ON time: 1 minute
• Capacity: 15 amps Resistive (1875 Watts), 500 Watts Tungsten.
• 15 amps Inductive, 1/3 H.P - 120 Volts, 60 Hz 

For programming information click here

Product Number Product Description Price
734025 Digital Timer $36.95 Add to Cart

Encore Repeat Cycle Timer

Encore Repeat Cycle Timer

Perfect for indoor gardens, greenhouses, foggers, misters, sprayers, pumps, fans and any other application requiring automatic short cycle on and off timing. Choose cycle running times between 5 seconds and 30 minutes with interval gaps ranging between 5 minutes and 8 hours. Easy to read, control and set up. Plugs directly into standard power outlet with 78" power cord. Connects to timed equipment via 13" cord. Operates on 120 volts A.C. with 15 amp switching capacity. To view a programming guide, click here

Product Number Product Description Price
734115 Encore Repeat Cycle Timer $95.95 Add to Cart

Cyclestat 4P Repeat Cycle Timer

Cyclestat 4P repeat cycle timer

The Cyclestat 4P is perfect for plant zone environments, reptile habitats or any other application requiring automatic short cycle switching. No programming required. Easy to set and operate. Microprocessor time counter with adjustable frequency and duration. The Cyclestat 4P timer has many uses. Only a few of them include: fogging or misting, spray stakes or drip system timing, air pumps, CO2 equipment and intake or exhaust fan control. The Cyclestat may be set for interval and cycle of timed events. Interval is the time between “ON” cycles. The interval knob may be set from 5 minutes to 8 hours. Set this for desired time between functions. Cycle is the length of time that a specific function or condition must be maintained. Cycle may be set from 5 seconds to 30 minutes. 

Product Number

Product Description

Price

702385 Cyclestat 4P Repeat Cycle Timer $170.00 Add to Cart

Chronometric Sequential Timer

Chronometric Sequential Timer

The CST-1 has solved the age old problem of accurate short cycle timing. The only unit of it’s kind designed specifically for the control of grow systems. Easy to set and operate. Solid state time counter with adjustable frequency and duration. The CST-1 function timer has many uses and only a few of them include: fogging or misting, spray stakes or drip system timing, air pumps, CO2 equipment and intake exhaust fan control.

Product Number

Product Description

Price

702379 Chronometric Sequential Timer $225.00 Add to Cart
 Day Night Photo Switch

Day Night Photo Switch

The PS-1 Photostat is used to turn equipment “Off” during a photo “Off” period (night operation). When the lights are “Off” the control equipment will be powered down. In this mode the Photostat is ideal for use in CO2 generation. The Photostat may also be used to turn equipment “Off” during a photo “On” period (Daylight Operation). Switch between day or night operation. The PS-1 can also be used to operate indoor or supplementary lighting to correspond to natural outdoor daylight hours as seasons change. In DAY mode locate the PS-1 so it detects outdoor day length and functions your indoor lighting timer accordingly. 

Product Number Product Description Price
702360 Day Night Photo Switch $145.00 Add to Cart

24 Hour Timer/ Cooling Thermostat

24 hour timer, cooling thermostat

This unit operates equipment up to 15 amps @ 120 volts.

Housed in a corrosive - resistant black anodized chassis, this controller offers a synchronous, motor driven time switch with 96 daily 15 minute increments and a built in adjustable, independent thermostat. Plug timed equipment into the left side of the controller and plug temperature controlled equipment into the right side. The durable solid state offers a 7 degree differential (comfort zone). Optional 3 degree external coil or remote bulb thermostats are available. 

 
Product Number Product Description Price
702430 24 Hour Timer with Cooling Thermostat $199.00 Add to Cart

Tempstat Thermostat

Tempstat Thermostat

The Temp H/C Temperature Controller is switchable between heat and cool. Perfect for plant zone environments, reptile habitats or any other application requiring automatic switching of heating and cooling equipment. The black anodized aluminum enclosure is durable and attractive and will never corrode or discolor from hot, cold or humid environments. Available with 3º or 7º differential span or 7º Remote Bulb Thermostat. This control operates AC, exhaust fans, evaporative coolers, heaters or other temperature equipment by activating switches, motors, valves or pumps. Temperature range 40º to 110º F (5º to 45º C).

Product Number

Product Description

Price

702377

Tempstat Thermostat

$155.00 Add to Cart

Humidity Controllers

Total Humidity Controller - Humidify and Dehumidify

Total Humidity Controller - Humidify and Dehumidify

 

Control humidity automatically and accurately with the Total Humidity Controller.
The THC can be switched between humidify and dehumidify to remove unwanted atmospheric moisture accumulating within an enclosed area or to add needed moisture to the air by means of humidification. In the dehumidifying mode high humidity conditions will activate fans or other dehumidifying apparatus until level drops approximately 7% in relative humidity. At this point dehumidifying equipment is disabled until humidity increases again 7%. In the humidifying mode this control operates fogging or other humidifying equipment by activating switches, motors, valves or pumps. Humidifiers can be precisely controlled according to atmospheric humidity to create ideal conditions for any environment. 

Product Number

Product Description

Price

702375 Total Humidity Controller $145.00 Add to Cart

Relative Humidity Controller - Humidify or Dehumidify

Relative Humidity Controller - Humidify or Dehumidify

The RHC Relative Humidity Controller is our most recent development in total humidity control. It is switchable between humidify and dehumidify. The RHC has a built-in on board sensor which is accurate within +/- 5% with a set differential of 5%, and temperature compensation. Perfect for plant zone environments, reptile habitats, or just about any application requiring accurate response and control.

The 702370 is identical in function to 702365 but offers a 20 foot remote sensor. Both units operate equipment up to 15 amps @ 120 volts.

Product Number Product Description Price
702365 Relative Humidity Controller $299.00 Add to Cart
702370 Relative Humidity Controller with Remote Sensor $325.00 Add to Cart

Environmental Controllers CO2

Environmental Controllers CO2

These systems are a breakthrough in CO2 detection and control. The CDMC-6 system is designed to sample the air and learn the characteristic of your space, then make adjustments as necessary to ensure a constant level of CO2. The CDM-6000 monitor employs a passive infrared sensor which samples the air once every second and then sends the sample data to the CDDS-2 sequencer. The CDDS-2 then activates or deactivates your CO2 enrichment or venting (exhaust) equipment to maintain desired CO2 PPM. The CDDS-2 uses a sophisticated adaptive algorithm or “Overshoot Protection Logic” to learn the dynamics of the space being controlled. This allows the systems to avoid dramatic overshoots inherent to set point controllers or timed CO2 enrichment. These learned parameters are stored in the memory, even when the ‘POWER’ is off, or until you reset the unit. The CDMC-6 system offers a large LCD screen displaying the current CO2 levels in PPM. Set your desired CO2 level, ‘Hysteresis’ and ‘Elevation’ to maintain precise levels without guesswork. The CDMC-6 system can be using for enriching or venting CO2 and incorporates a photo sensor to defeat
CO2 during dark periods (Night).
 

Product Number Product Description Price
703415 CDDS - 2 and CDM -6000 Sensor $875.00 Add to Cart

CDDS - 2 and CDM - 7001 Sensor

cdds2 and cdm

The CDMC-7 system functions like the CDMC-6 for CO2 enrichment or ventilation, but offers the added features of a portable monitor in the CDM-7001 with dual beam absorption infrared technology and a LCD display that shows CO2 PPM and real time temperature. The CDM-7001 monitor is also equipped with a computer interface to download CO2 history. Recorded data can be graphed and printed using a Windows based VG graphing software (not included).

Product Number Product Description Price
703420 CDDS-2 and CDM-7001 Sensor $1350.00 Add to Cart

Mutli Function Controllers

 

Integrated Cooling Thermostat and Dehumidistat/ 4 outlets

integrated cooling thermostat and dehumidistat

This CT-DH-1 is designed to turn “On” and “Off” exhaust fans and/or intake fans to remove unwanted atmosphere due to heat or humidity. This device is intended as a cooling and dehumidifying control. This controller is ideal for situations where excess heat and humidity need to be exhausted. Internal sensors will allow a 7° temperature comfort zone and a 7% humidity span (differential) between the time the fans go “Off” and come back “On” again. When either temperature or humidity exceeds the dial settings, all four outlets will turn “ON”, activating any cooling or exhaust equipment plugged into the controller. 

Product Number Product Description Price
702330 Integrated Cooling Thermostat and Dehumidistat $184.95 Add to Cart

Independent Cooling and Heating Thermostat / 4 outlets

independent cooling and heating thermostat / 4 outlets

This controller features fully independent sensors for cooling and heating equipment. The cooling thermostat activates the left outlets of the controller and the heating thermostat activates the right outlets. If you require a tighter control of your temperature than the internal heating \ cooling thermostats allow, alternate sensors are available with a 3º differential (External Coil).

* Also available with a 7º Remote Bulb Thermostat.

Product Number Product Description Price
702350 Independent Cooling and Heating Thermostat  $185.00 Add to Cart

Synchronized Cooling Thermostat / Dehumidistat

Synchronized Cooling Thermostat/Dehumidistat

While the CT-DH-3 has many applications, it was primarily developed to be used with CO2 equipment and exhaust type fans. Internal sensors will allow a 7° temperature comfort zone and a 7% humidity (differential) between the time the fans go “Off “and come back “On” again. Temperature or humidity raise will activate the right hand outlets and deactivate the left hand outlets. The CT-DH-3 has an internal relay that automatically switches power from the left side (CO2 Outlets) to the right side (Exhaust Outlets) of the unit when either temperature, humidity or both are in excess of the dial settings. Plug the controller into a power surge protector to protect your valuable equipment, and then plug the surge protector into a 110 wall outlet. Set the temperature and humidity to the desired settings. The left side of the controller is normally in the “ON” position and is able to activate CO2 equipment as needed. The CT-DH-4P is designed to be used with CO2 equipment, dehumidifiers, and exhaust fans. While it is similar to the CT-DH-3 it has the added feature of offering independent outlets for temperature and humidity control. It is ideally suited for use with dehumidifiers. Temperature raise will activate the right hand outlets and deactivate the CO2 outlet. Humidity rise will activate the dehumidifying outlet. Internal sensors will allow a 7° temperature comfort zone and a 7% humidity (differential) between the time the equipment goes “Off “and comes back “On” again. Plug the controller into a power surge protector to protect your valuable equipment, and then plug the surge protector into a 110 wall outlet. Set the temperature and humidity to the desired settings. The CO2 outlet is normally in the “On” position and is able to activate CO2 equipment as needed, but is defeated when exhaust function is active. The photo sensor will defeat CO2 enrichment during darkness hours. 

* SYNCHRONIZED COOLING THERMOSTAT /DEHUMIDISTAT / 4 OUTLETS Model CT-DH-3

SYNCHRONIZED COOLING THERMOSTAT / DEHUMIDISTAT /
4 OUTLETS with LIGHT ACTIVATED PHOTO SENSOR Model CT-DH-3P

SYNCHRONIZED COOLING THERMOSTAT / DEHUMIDISTAT / 4
OUTLETS with LIGHT ACTIVATED PHOTO SENSOR Model CT-DH-
4P

Product Number Product Description Price
702335 CT-DH-3 $219.95 Add to Cart
702340 CT-DH-3P $274.95 Add to Cart
702345 CT-DH-4P $299.95 Add to Cart

Microclimate Controller System / 8 Outlet

Microclimate Controller System, 8 outlets

The Micro Climate Controller MCC-1 is designed to perform all the major atmospheric
and timed functions required in an automated growth environment including temperature,
humidity, carbon dioxide enrichment, lighting and irrigation control. The controller incorporates an external coil cooling thermostat , a dehumidifying humidistat, a 24-hour clock timer, a photo-sensor and a repeat cycle timer. Automatic override and defeat systems coordinate controls to consider all possible variables. The MCC-1 is enclosed in a black anodized, brush finish aluminum housing. An attractive screen-printed front panel with function indicator lights makes system monitoring and adjustment quick and easy. All connections are standard 3-prong grounded plugs and receptacles. No hard wiring is required for basic operations. Every aspect of the growing environment may be addressed by the Micro Climate Controller (MCC-1).  

* Operates on 110VAC with 15 Amp switching capacity.

Product Number Product Description Price
702355 Microclimate Controller System $745.00 Add to Cart

24 HR. Timestat Controllers Model TSC-1

timestat controller

The TSC-1 timer is a 24 hr. time switch that provides accurate timing with 96 non detachable trippers for On/Off functions adjustable in 15 Min. increments up to 48 cycles per day. Easy to set and operate. Constructed with durable, black anodized, aluminum housings that will never corrode or discolor for hot, cold or humid environments. This unit can be used independently or as part of a combination of control devices to coordinate numerous system functions. Precision synchronous clock motor provides 15 amp 110V control for pumps, fans, lighting, solenoids, motors, relays or virtually any equipment or appliance dependent upon multiple daily operations.

Product # Description Price
703405 24 Hour Timestat Controller TSC-1 $155.00 Add to Cart

High Amperage Relay Model HAR-1

high amperage relay

This power relay uses high amperage capacity contacts to transfer power to large
fans, pumps or lighting systems requiring high voltage or amperage service. Prevents
premature failure of equipment, timers or other switching controls due to excessive
current draw. Allows switching of 240 V AC equipment with 115 V AC controls. Prevents
equipment overheating due to insufficient power supply. Use the HAR-1 to operate 115
or 240 volt high draw equipment. Provides 30 amp switching capacity with 115 V AC
trigger input from control device. Approved for indoor use only.

Product # Description Price
703410 HAR-1 High Amperage Relay $220.00 Add to Cart

4 Light Timer - 120 Volts Model LT4-120

LT4- 4 light timer for greenhouse lighting

These time switches are designed to operate high load lighting equipment. They consist of a premium quality precision synchronous clock motor and a high amperage switching circuit. These controllers are housed in black anodized brush finish aluminum enclosures
which will not break, chip or corrode. Operates with a maximum combined outlet switching capacity of 40 amps. Plug or wire the power cord into a receptacle capable of handling the maximum total combined amperage draw of your equipment load. Plug lighting equipment into outlet receptacles located on each side of controller. Timer has 96 non-detachable 15 minute on\off trippers. The LT4-120 provides four 10 amp outlets, while the LT4-240 offers four 5 amp outlets. Both timers are capable of controlling up to four 1000 watt lights each. The LT8-240 provides eight 5 amp 240 volt outlet receptacles, each capable of powering up to 1000 watts of lighting equipment.

Product # Description Price
702390 LT 4 120 4 Light Timer 120 volt $300.00 Add to Cart
702395 LT 4 240 4 Light Timer 240 volt $350.00 Add to Cart
703400 LT 8 240 8 Light Timer 240 volt $395.00 Add to Cart