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Guardian GMS

Make Your Farm More Efficient

As a farmer, you understand the importance of making sure your crops are safe and secure. From storage to transport, the proper management of your grain bin is essential for the success of your farming business. That’s why Guardian GMS (Grain Management Systems) can help you make sure you’re getting the most out of your grain bin investments. With our grain quality management services, you can make sure your bins are running at their peak efficiency and protecting your grain from the elements. Click here to visit our online store to learn more about how Guardian GMS can help you make the most of your grain bin investments.

Available Products

Up To 30' Diameter Bins With 1 Fan
Perfect for monitoring grain temperature and moisture in bins 12' to 30′ in diameter with one fan.
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Up To 30' Diameter Bins With 2 Fans
The ultimate package for monitoring grain temperature and moisture in grain bins 12' to 30' in diameter and has two fans.
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31' To 48' Diameter Bins With 1 Fan
Perfect for monitoring grain temperature and moisture in bins 31' to 48′ in diameter with one fan.
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31' To 48' Diameter Bins With 2 Fans
The ultimate package for monitoring grain temperature and moisture in grain bins 31′ to 48' in diameter and has two fans.
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49' To 66' Diameter Bins With 1 Fan
Perfect for monitoring grain temperature and moisture in bins 49' to 66′ in diameter with one fan.
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49' To 66' Diameter Bins With 2 Fans
The ultimate package for monitoring grain temperature and moisture in grain bins 49′ to 66' in diameter and has two fans.
Click here to visit our online store for more information.

Guardian GMS S2 OS/PL Sensor
Perfect tool for monitoring outside air temperature and humidity levels in grain bins.
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Guardian GMS S2 Control Box
Allows you to remotely control any number of connected devices such as grain bin fans, augers, livestock fans, heating and cooling systems, and many more.
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Guardian GMS S2 Headspace Sensor
This innovative air temperature and humidity sensor is perfect for keeping an eye on your grain and ensuring its quality.
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Agricultural Applications

  • Pivot Systems
  • Livestock Barns
  • Hay Storage Facilities
  • Grain Bins
  • Greenhouses
  • Basements
  • Attic Fans
  • Inside Your Home

Frequently Asked Questions

  • Do I need WiFi at the location?
    Yes. If you don’t have WiFi you can visit your local cell phone store and purchase a hotspot. One hotspot can operate up to 15 devices. Your cell phone provider will charge you approximately $10/month. * Don’t want to purchase a hotspot... you can use the display on your smart phone to set your Guardian Smart Fan Control, Bin Monitor or Plenum Sensor without wifi at the grain bins! Here’s how: When you get close enough to the bin, the Guardian Switch and Sensors connect to the hotspot in your smart phone. The switch operates in automatic without being connected to the wifi. To remote monitor and control from anywhere on your smart phone you would need wifi at the bins.
  • Are there any subscription fees from Guardian GMS?
    No, there are no subscription fees from Gaurdian GMS.
  • How much is the app to operate my switch?
    Nothing, it is a completely free app. Go to your local app store search “stepsgms” and download.
  • Can this switch save me on my energy bill?
    Yes, we’ve pulled local data from the National Weather Station and you can save up to 50% on your yearly energy bill if you run your fans in automatic according to the suggested set points.
  • Can I run more than one fan from one switch?
    Yes, but depending on the distance between fans and the cost of wiring it usually is more cost effective to purchase another switch. We recommend one switch per fan.
  • If I lose power will the fan come back on with the power?
    Depending on your setting choices within the app the fan may resume or shut off.
  • What do I do if the humidity and temperature readings are always the same?
    Shut off all power to the switch. Unplug the humidity/temperature switch from the internal board. Wait a few minutes and plug the sensor back in and turn power back on. You may also want to add some dielectric grease to the connection as well. You may also need to update your app, make sure all updates have been performed. If you have tried these steps and still are not getting accurate readings please call 800-557-4689 or 605-336-1750, you can always email any questions to info@siouxsteel.com as well.
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