Moisture Sensor

Automatic moisture sensor for grain drier control

The Automatic Moisture Sensor is intended for continuous measurement of moisture at the inlet and/or outlet of a continuous mixed flow drier. We have three options available, which are detailed below.

The purpose of the Automatic Moisture Sensor is to save fuel & time by not over-drying your crop.

Products that can be measured as standard include: wheat, barley, oats, triticale, rye, corn, buckwheat, millet, sorghum, rice, coffee, peas, lupin, soybean, rape, sunflower, jojoba, seaweed.

Key Points

  • Accurate to within 0.5% (MC 5% to 18%).
  • Accurate to within 1% (MC 18% to 40%).
  • Fully integrated into our own PLC control software for the drier.
  • Can be installed into any make of existing drier or as a standalone system.
  • IP65 – suitable for outdoor applications.
  • Proven technology.
  • Increases revenue by not over-drying your crop.


Option 1)

Auto drier control using exhaust air temperature sensor at the top of the drier and moisture measuring sensor on drier outlet only.

This is our most cost-effective option, which gives excellent control, but does not record the product input moisture content. This option can be connected to our in-house designed & programmed PLC control panel.

A second sensor can be added at a later date if required.

Option 2)

Auto drier control using a moisture measuring sensor at the drier inlet and a moisture measuring sensor on the drier outlet.
This system has the advantage of recording the input grain moisture content and outlet grain moisture content to make a complete record. This option can be connected to our in-house designed & programmed PLC control panel.

Option 3)

Standalone single sensor and sampling auger with display. This system is ideally suited to driers that are hard-wired or not manufactured by Perry of Oakley Ltd. It is a standalone system that has no PLC panel connectivity.











Managing Director, David Perry, said “It is imperative that our British farmers are able to continue to support this country through these uncertain times, as a company we aim to support them every way we can with the help of our trusted dealer network. From new...

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