Grain Temp Guard – Alarm HT – Generation 2


Farm progress sale while supplies last!

Simple and Reliable

The Grain Temp Guard® is a grain monitoring system that helps you ensure your hard work doesn’t go to waste. The Dual Temp (DT) probes and alarm system will help you efficiently monitor hot spots throughout your bins. Modular add-ons, including an EndZone – humidity-temperiture, fan control system, and Heat Seeker ($999.00), hot-spot fan control, (available for orders, give us a call)!

30 day money back satisfaction guarantee. Ask for details.



If you’re dissatisfied for ANY reason, please contact Farm Shop, and  simply return the product within 30 days of your ship date in like-new condition with all the original packing materials, accessories, and manuals to receive a complete refund. You will not be reimbursed for shipping to or from Farm Shop MFG.



GRAIN TEMP GUARD – Humidity/Temperature

  • Sealed poly case with polycarbonate clear cover for easy visualization
  • Easy to open latch style cover for setting
  • 110 V external power with internal battery backup
  • Visual and audio alarm on a 10 m cord for mounting in a more accessible area
  • 15m Probes come standard with the unit
  • Additional probe lengths available: 10 m, 15 m, 25 m, 30 m and 45 m
  • Monitor temperature and humidity at one location in the grain bin
  • A must-have for conditioning grain (utilizing fans to lower grain moisture)
  • Trigger visual and audio alarm based on a high and low trigger point set by the operator for temperature and humidity

Over-drying corn or beans reduce your product by 1 1/2% for each 1% moisture loss.

Based on current prices, in a 30,000 bushel bin this costs:

$1650 for corn

$3850 for beans

Money spent to put an alarm HT probe in the top  (this can be placed after the bin is full) of the bin and one in the bottom would go a long way to help a farmer get control of this.

Recommendations for the number of probes to consider for your bin

Recommended: 2 probes per bin for the first 10,000 to 20,000 bushels and 1 additional probe for each additional 10,000 to 15,000 bushels. This will allow you to monitor more layers through the bin.

When using the Alarm HT (the correct unit for monitoring bins in which you are doing in bin drying or for monitoring soybeans) you will need to purchase twice as many units because this device has only 1 cable per monitoring unit. It is using its function to monitor both temperature and humidity (humidity is the key to providing the best grain moisture solution).

Install Instructions

Resources/Additional Information

Zip tie probe at the base of the bin for support

Moisture Migration

The 2016 corn was sold in September 2019. It had a 60 pound test weight in a moisture of 13.5%.

Additional information


Alarm DT (Dual Temp), Alarm HT (Humidity/Temp)

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