OPI Blue Grain Monitoring System 

Remote Grain Temperature and Moisture Monitoring

The future of grain storage management. Remote access to mobile devices—anywhere, anytime. Timely in-bin grain storage data will update directly to your smartphone or tablet with automatic 24/7 monitoring and alerts.

Remote Connectivity

OPI Blue is a wireless system that delivers timely grain storage information to your mobile devices. No more driving to your bins to plug in.

Now you can access your critical grain storage information wherever you work, live or play. OPI Blue can be incorporated into your current OPI grain management system using existing cabling or purchased as a new system.

OPI Blue management features:

  • Temperature
  • Moisture
  • Grain inventory levels

OPI Blue give you peace of mind. The system monitors your grain 24/7 and alerts you when your grain starts to trend out of condition. Best of all, OPI Blue has been designed for ease of everything:

  • Easy to install and configure
  • Easy to use
  • Easy to service
  • Easy on the wallet


  • A Cable Node mounted atop each bin, complete with solar charging with wireless data transmission.
  • A centrally located Gateway wirelessly collects and stores information from the Node network and transmits this information to your mobile devices via internet or cellular connection (Wi-Fi optional).
  • The mobile App also stores your data with the ability to review your complete storage history offline.

Component Features

Temperature Sensing

StorMax retractable temperature cables with 2-wire digital technology for maximum accuracy (+/-0.5Degrees) and reliability, as well as simplicity of installation and service

Moisture Sensing

OPI’s moisture cables calculates moisture content by taking relative humidity and temperature measurements up through the grain (typically every 4’-6’) – with accuracies up to +/-0.5% (this level of accuracy can only be achieved with OPI manufactured systems).

Mobile App

OPI Blue customers can download the free mobile app through the App store for Apple devices. The OPI Blue app is an easy to use and graphically rich program that displays data in numerous formats including table view, 2-D graph and 3-D bin view (“spinny-bin”). Giving you access to complete grain storage history on your smartphone or tablet.