FP-24C Flush Mounted On-Line Moisture Sensor

Reg. U.S. Pat. Off. Nos. 6,249,130 B1 and 6,388,453 B1


  • Accurately monitors moisture content in grains and other particulate materials
  • Designed for physically hostile environments such as mixers, chutes, conveyors, and augers.
  • Reliable, rugged, economical solution for moisture monitoring applications
  • Configurable to meet specialized requirements
  • Easily integrated into process control systems

Product Specifications

FP Series sensors feature proven capacitive moisture sensing technology in a flat plate configuration. This allows its mounting in a mixer, an auger, a chute, or a sled riding on granular material being transported by a belt conveyor for continuous measurement of moisture content.

Its milliamp moisture and temperature outputs resist electromagnetic interference, can be displayed on our Digital Moisture Display Interface (DiMDI) and/or transmitted as an analog signal for integration into a process control system.

Measurement accuracy
Particulate sample temperature ±1°F
Particulate moisture content (typical) ±0.25%
Moisture 4 to 20 mA
Temperature 4 to 20 mA
Moisture content 4 to 20 mA
Gain Adjustable (DiMDI required)
Frequency adjustable (DiMDI required)
Minimum sample depth 4 inches (10 cm)
Operational Temperatures
Sensor, ambient -40°F to 180°F
Particulate sample 0°F to 200°F (Others optional)
Electrical power
Required 12VDC to 36VDC
Consumption 3 Watts maximum
Physical size
Surface dimensions (inches) 4.625 X 7.625
Materials of construction
Sensor face Ceramic
Sensor body Electroless nickel-plated aluminum
Sensor body 316 Stainless Steel
Digital Moisture Display Interface (DiMDI) Controller for up to 8 sensors
Defined Area Flow Restrictor (DAFR) For chute mounting
Sled mount For belt conveyor mounting
Hinged door mount (shown) For mixer or auger mounting