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FAQ Section

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What does the 8 Stage Ventilation Controller control? \n
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It manages heating, cooling, ventilation, curtains, actuators, and duty-cycle equipment using variable-speed and relay outputs.
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How many stages does the controller support? \n
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It supports 8 total stages: 2 independent variable-speed stages and 6 on/off relay stages, plus an alarm relay.
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Can the relay stages be configured for heating or cooling? \n
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Yes. Each relay stage is fully configurable for heating, cooling, or other control functions.
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What types of sensors can be connected? \n
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The controller supports up to four interior temperature sensors, one exterior temperature sensor, one humidity sensor, and two potentiometer inputs.
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Is a temperature sensor included? \n
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Yes. A 30-foot temperature probe is included, and sensor lengths can be extended up to 500 feet.
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Does the controller support variable-speed fans? \n
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Yes. It includes two independent variable-speed outputs, each rated at 12 FLA.
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Is the controller secure from unauthorized changes? \n
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Yes. It includes password protection and user-access controls to prevent unwanted setting changes.
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Specifications \"\"\n

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J&D Manufacturing 8 Stage Ventilation Controller\"\"
Product Name8 Stage Ventilation Controller
SKUJD-26PLUS
Control Stages2 Variable Speed + 6 Relay Stages
Variable Speed Output2 independent stages, 12 FLA each
Relay Output6 stages (12 FLA each) + 1 Alarm relay
Display2-line, 24-character LCD
Sensor InputsUp to 4 interior temp, 1 exterior temp, 1 humidity, 2 potentiometers
Included Sensor30 ft temperature probe (extendable up to 500 ft)
ConfigurationFully configurable relay stages
CompatibilityFarmQuest, FarmSite, WiFarm telesystem technologies
Voltage115 or 230 Volt
Frequency50/60 Hz
Ambient Range32°F to 113°F (0°C to 45°C)
Enclosure Size11\" x 8\" x 6\"
Spec SheetPDF
User ManualPDF
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What is included? \"\"\n

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It includes:

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  • \n\"\" J&D Manufacturing 8 Stage Ventilation Controller\n
    • \n
  • \n\"\" Sealed enclosure with 2-line, 24-character LCD display\n
    • \n
  • \n\"\" Navigation buttons and 8 hot keys for easy control\n
    • \n
  • \n\"\" Password protection and on-screen help system\n
    • \n
  • \n\"\" Standard 30-foot temperature probe\n
    • \n
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Warranty Policy

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Please check out the manufcaturers website for Warranty related issues.

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J&D Manufacturing 8 Stage Ventilation Controller
HomeStore

J&D Manufacturing 8 Stage Ventilation Controller

J&D Manufacturing 8 Stage Ventilation Controller

$1,159.74

Original: $3,313.55

-65%
J&D Manufacturing 8 Stage Ventilation Controller—

$3,313.55

$1,159.74

The Story

J&D Manufacturing 8 Stage Ventilation Controller

The JD-26PLUS ventilation controller is designed for advanced, dependable environmental management, giving producers flexible multi-stage control for heating, cooling, and airflow equipment. Its sealed enclosure, clear LCD screen, and password protection support secure operation, while dual variable-speed stages and multiple relay outputs provide precise system control. Ideal for facilities needing expandable sensor inputs, configurable relays, and efficient, scalable ventilation automation in demanding agricultural environments.

  • Features & Benefits
  • Product Specifications
  • What is included?
  • Warranty Policy

J&D Manufacturing 8 Stage Ventilation Controller

Built for multi-zone ventilation and equipment staging, the JD-26PLUS controller delivers flexible, secure control for temperature-driven heating and cooling systems. Its sealed enclosure, easy-to-read LCD screen, and password protection support reliable operation, while two independent variable-speed stages and multiple relay outputs make it ideal for producers who need scalable automation, configurable settings, and consistent climate management in demanding agricultural facilities.

  • Provides 8 stages of control with two independent variable-speed outputs plus six on/off relay stages.
  • Fully configurable relay stages support heating, cooling, curtains, actuators, duty cycles, and more.
  • Supports multiple inputs including up to four interior temp sensors, outside temp, humidity, and potentiometers.
  • Two-line, 24-character LCD with hot keys, on-screen help, and navigation buttons simplifies setup.
  • Adjustable motor curves and indicator status lights help fine-tune performance and monitor outputs.
  • Includes a 30 ft temperature probe and accepts extended sensor lengths up to 500 ft.

Advanced Multi-Stage Climate Control for Agricultural Facilities

The 8 Stage Ventilation Controller is built for growers who need precise, automated control over complex ventilation and climate systems. Its sealed enclosure, clear LCD display, and flexible input and output options ensure dependable performance while helping manage heating, cooling, and airflow across your facility.

Why J&D Manufacturing?

J&D Manufacturing, founded in 1981 in Eau Claire, WI, is a family-owned company specializing in high-performance, high-efficiency ventilation and comfort solutions for agriculture. Partnering with dairy, poultry, swine, and other producers, J&D delivers American-made systems that improve animal comfort, reduce costs, and boost productivity, all while supporting the evolving needs of modern farming across the U.S. and worldwide.

Why Buy From Us?

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Jim D

Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
Glenn Appleton

The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Freddie

Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Kar

←
→

FAQ Section

What does the 8 Stage Ventilation Controller control?
It manages heating, cooling, ventilation, curtains, actuators, and duty-cycle equipment using variable-speed and relay outputs.
How many stages does the controller support?
It supports 8 total stages: 2 independent variable-speed stages and 6 on/off relay stages, plus an alarm relay.
Can the relay stages be configured for heating or cooling?
Yes. Each relay stage is fully configurable for heating, cooling, or other control functions.
What types of sensors can be connected?
The controller supports up to four interior temperature sensors, one exterior temperature sensor, one humidity sensor, and two potentiometer inputs.
Is a temperature sensor included?
Yes. A 30-foot temperature probe is included, and sensor lengths can be extended up to 500 feet.
Does the controller support variable-speed fans?
Yes. It includes two independent variable-speed outputs, each rated at 12 FLA.
Is the controller secure from unauthorized changes?
Yes. It includes password protection and user-access controls to prevent unwanted setting changes.

Specifications

J&D Manufacturing 8 Stage Ventilation Controller
Product Name 8 Stage Ventilation Controller
SKU JD-26PLUS
Control Stages 2 Variable Speed + 6 Relay Stages
Variable Speed Output 2 independent stages, 12 FLA each
Relay Output 6 stages (12 FLA each) + 1 Alarm relay
Display 2-line, 24-character LCD
Sensor Inputs Up to 4 interior temp, 1 exterior temp, 1 humidity, 2 potentiometers
Included Sensor 30 ft temperature probe (extendable up to 500 ft)
Configuration Fully configurable relay stages
Compatibility FarmQuest, FarmSite, WiFarm telesystem technologies
Voltage 115 or 230 Volt
Frequency 50/60 Hz
Ambient Range 32°F to 113°F (0°C to 45°C)
Enclosure Size 11" x 8" x 6"
Spec Sheet PDF
User Manual PDF

What is included?

It includes:

  • J&D Manufacturing 8 Stage Ventilation Controller
  • Sealed enclosure with 2-line, 24-character LCD display
  • Navigation buttons and 8 hot keys for easy control
  • Password protection and on-screen help system
  • Standard 30-foot temperature probe

Warranty Policy

Please check out the manufcaturers website for Warranty related issues.

Description

J&D Manufacturing 8 Stage Ventilation Controller

The JD-26PLUS ventilation controller is designed for advanced, dependable environmental management, giving producers flexible multi-stage control for heating, cooling, and airflow equipment. Its sealed enclosure, clear LCD screen, and password protection support secure operation, while dual variable-speed stages and multiple relay outputs provide precise system control. Ideal for facilities needing expandable sensor inputs, configurable relays, and efficient, scalable ventilation automation in demanding agricultural environments.

  • Features & Benefits
  • Product Specifications
  • What is included?
  • Warranty Policy

J&D Manufacturing 8 Stage Ventilation Controller

Built for multi-zone ventilation and equipment staging, the JD-26PLUS controller delivers flexible, secure control for temperature-driven heating and cooling systems. Its sealed enclosure, easy-to-read LCD screen, and password protection support reliable operation, while two independent variable-speed stages and multiple relay outputs make it ideal for producers who need scalable automation, configurable settings, and consistent climate management in demanding agricultural facilities.

  • Provides 8 stages of control with two independent variable-speed outputs plus six on/off relay stages.
  • Fully configurable relay stages support heating, cooling, curtains, actuators, duty cycles, and more.
  • Supports multiple inputs including up to four interior temp sensors, outside temp, humidity, and potentiometers.
  • Two-line, 24-character LCD with hot keys, on-screen help, and navigation buttons simplifies setup.
  • Adjustable motor curves and indicator status lights help fine-tune performance and monitor outputs.
  • Includes a 30 ft temperature probe and accepts extended sensor lengths up to 500 ft.

Advanced Multi-Stage Climate Control for Agricultural Facilities

The 8 Stage Ventilation Controller is built for growers who need precise, automated control over complex ventilation and climate systems. Its sealed enclosure, clear LCD display, and flexible input and output options ensure dependable performance while helping manage heating, cooling, and airflow across your facility.

Why J&D Manufacturing?

J&D Manufacturing, founded in 1981 in Eau Claire, WI, is a family-owned company specializing in high-performance, high-efficiency ventilation and comfort solutions for agriculture. Partnering with dairy, poultry, swine, and other producers, J&D delivers American-made systems that improve animal comfort, reduce costs, and boost productivity, all while supporting the evolving needs of modern farming across the U.S. and worldwide.

Why Buy From Us?

At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.

Excellent 4.8 out of 5 based on 1,247 reviews
If I could rate 6 stars I would!
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Jim D

Customer service was outstanding great…
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
Glenn Appleton

The machine is doing just what my…
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Freddie

Fantastic
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
Kar

←
→

FAQ Section

What does the 8 Stage Ventilation Controller control?
It manages heating, cooling, ventilation, curtains, actuators, and duty-cycle equipment using variable-speed and relay outputs.
How many stages does the controller support?
It supports 8 total stages: 2 independent variable-speed stages and 6 on/off relay stages, plus an alarm relay.
Can the relay stages be configured for heating or cooling?
Yes. Each relay stage is fully configurable for heating, cooling, or other control functions.
What types of sensors can be connected?
The controller supports up to four interior temperature sensors, one exterior temperature sensor, one humidity sensor, and two potentiometer inputs.
Is a temperature sensor included?
Yes. A 30-foot temperature probe is included, and sensor lengths can be extended up to 500 feet.
Does the controller support variable-speed fans?
Yes. It includes two independent variable-speed outputs, each rated at 12 FLA.
Is the controller secure from unauthorized changes?
Yes. It includes password protection and user-access controls to prevent unwanted setting changes.

Specifications

J&D Manufacturing 8 Stage Ventilation Controller
Product Name 8 Stage Ventilation Controller
SKU JD-26PLUS
Control Stages 2 Variable Speed + 6 Relay Stages
Variable Speed Output 2 independent stages, 12 FLA each
Relay Output 6 stages (12 FLA each) + 1 Alarm relay
Display 2-line, 24-character LCD
Sensor Inputs Up to 4 interior temp, 1 exterior temp, 1 humidity, 2 potentiometers
Included Sensor 30 ft temperature probe (extendable up to 500 ft)
Configuration Fully configurable relay stages
Compatibility FarmQuest, FarmSite, WiFarm telesystem technologies
Voltage 115 or 230 Volt
Frequency 50/60 Hz
Ambient Range 32°F to 113°F (0°C to 45°C)
Enclosure Size 11" x 8" x 6"
Spec Sheet PDF
User Manual PDF

What is included?

It includes:

  • J&D Manufacturing 8 Stage Ventilation Controller
  • Sealed enclosure with 2-line, 24-character LCD display
  • Navigation buttons and 8 hot keys for easy control
  • Password protection and on-screen help system
  • Standard 30-foot temperature probe

Warranty Policy

Please check out the manufcaturers website for Warranty related issues.

J&D Manufacturing 8 Stage Ventilation Controller | Green Thumb Depot