Pearlite Moisture

The Essentials of Quality

The USGS-estimated $24.5 million perlite industry depends on the accurate measurement of perlite moisture to support end uses for building construction products, horticultural aggregate, filtering, and other applications. Each application usually requires perlite of a specific particle size and/or density. For example in the construction industry, some plasters require finely meshed perlite particles for a flawless finish. In the horticultural industry, perlite used in fertilizer application is much more coarse in size, allowing each particle’s larger surface area to carry greater amounts of fertilizer product into the field. Perlite moisture must be controlled throughout the refinement process of all mesh grades to ensure consistency and to meet end use application requirements.

The IR-3000 near infrared (NIR) online moisture transmitter provides instant, non-contact measurement of moisture during the refinement of perlite in any industrial setting. What makes the IR-3000 well suited to the perlite refinement process is its insensitivity to particle size. From the finest of fines to extremely coarse grades of perlite, the IR-3000 is unsurpassed in accurate moisture measurement, making it the ideal solution for controlling perlite moisture in your process. 

Get Accurate Readings Now


Unsurpassed in performance, our sensors can accurately measure  moisture within tenths of a percent of most applications


MoistTech sensors withstand the test of time and are low to zero maintenance


Rely on MoistTech’s NIR moisture sensors to never drift or need re-calibration


A moisture measurement system is essential for the production process and in some cases will pay for itself in less than 30 days

Installing Success

The sensor of the IR-3000 can be installed at any point along the refinement process, from bed dryers to screw and drag conveyors or down chutes. The online moisture transmitter can be in a stand alone or multi-sensor configuration. In addition to the measurement of moisture, other analyzers are available for installation to measure and control coating thickness, resin content, oil, protein, fat, nicotine, sugar, seasonings, plastic film thickness, and other constituents, making the IR-3000 the most versatile measurement instrument in your industrial application.

Because communication with the sensor can be accomplished with Ethernet TCP/IP, plant-wide network, touch screen interface, or laptop, the IR-3000 can be installed in nearly every industrial environment. Its rugged design is impervious to ambient or other light effects, dust, temperature, and environmental humidity. The unit itself is very low maintenance and does not require recalibration.

The Best of the Best

MoistTech has studied moisture and its applications in manufacturing for over 40 years. That’s why we’re confident our moisture analyzers are a step above the rest. We’re constantly working to develop the latest, most advanced moisture testing technology—which is how the IR-3000 came about.

We’ve combined our decades of experience and knowledge with feedback from our industry partners to create a moisture sensor capable of taking instant, non-contact measurements of moisture, temperature, and other vital levels with the utmost accuracy. When it comes to moisture sensors, the IR-3000 is the most advanced system available.


Locate the point in the production process in which measuring moisture will be the most crucial and beneficial. Identify how you will use the moisture measurement data for improvements and if it will tie into your PLC.

Remember this could involve more than one installation point!


A closed loop process is achieved by incorporating a moisture measurement system into the manufacturing process. Developing a proactive solution to moisture control will avoid costly downfalls. 


MoistTech’s experts will assess your specific application with lab tests, calibrations and accuracy results to ensure our equipment will peform for you. All of our sensors are pre-calibrated prior to being shipped to create a plug-and-play operation for the end-user.


Our worldwide advanced technical support team would welcome the opportunity to learn about your application of perlite. We would be happy to discuss how the installation of the IR-3000 NIR online moisture transmitter would allow you to completely control perlite moisture in your refinement process. Contact MoistTech to speak with a qualified representative today.

Understand the Process

Learn more about MoistTech’s moisture sensing technology. With MoistTech, you have the ability to sense moisture in your products making them even better. MoistTech Corp. has developed a wide variety of sensors and technology that will allow you to carefully inspect and track all your products moisture levels.