Grain Bin Temperature Monitor – Grain Temp Guard
$499.00
Grain Bin Temperature Monitoring System
Grain Temp Guard is a $499 grain bin temperature monitoring system that tracks temperature and humidity at one location, alerts you to hot spots, and helps protect stored grain without a monthly subscription.
Visual and audio alarms give you a clear signal when a bin needs attention. The system includes a standard 15 m probe, with additional probe lengths available, plus 110 V external power and internal battery backup. Contact Farm Shop MFG to confirm the right setup for your bin and ask about the 30-day satisfaction guarantee.
Comparing options? Read the grain bin monitoring systems guide. Need help choosing probe lengths or a larger setup? Contact Farm Shop MFG or compare the Grain Bin Moisture Management Package.

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 Bin Temperature and Humidity Monitoring
- 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).
Resources/Additional Information

Zip tie probe at the base of the bin for support

Moisture Migration in Stored Grain


The 2016 corn was sold in September 2019. It had a 60 pound test weight in a moisture of 13.5%.
- Complete Moisture Management System for a large bin
- Wires can be run into the bin and then through conduit to protect the moisture management system.
- Wires can be run though conduit and then attached to rebar to keep everything organized.
- Rebar can be used to place sensors throughout the bin at appropriate levels
Additional information
| Type | Alarm DT (Dual Temp), Alarm HT (Humidity/Temp) |
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