Founded in 1958 and based in Elburn, Illinois, Monitor Technologies provides practical solutions in silo / bin level indication, level measurement, and inventory management for the storage and processing of most powder and bulk solids, as well as some liquids and slurries. Its devices are in use worldwide to assist in the efficient handling of grains, feed, flour and other dry ingredients, cement, flyash, sand, aggregates, coal, minerals, metals, dry chemicals, plastic pellets, wood, and other items stored in silos, bins, hoppers, and other vessels.


Point Level Indicators

Monitor Technologies is a leading provider of a wide range of solutions in point level indication, level detection, and level control for the storage of powders and bulk solids in bins, silos, vessels, etc. Sensor types available include rotary paddle, fail-safe rotary paddle, RF capacitance, vibratory, tilt switch, and diaphragm type. Models include options for when mounting space is limited and/or minimizing cost of ownership is a primary objective.

Particle Emission Detection

When a filter fails in a baghouse, it’s only a matter of time before a catastrophic tear can result, creating an environmental disaster. Particle emission detection devices from Monitor make sure you avoid these situations by providing reliable, economical detection of leaks and filter failures. Applications include the exhaust ducts of baghouses of various sizes, cartridge collectors, cyclones, and any other dust collector systems containing filters that may break or wear out.

Bin Aeration

Bin aeration devices from Monitor are designed to promote the flow of dry bulk powders from storage vessels without the noise and sometimes damaging vibration created by pneumatic or electric vibrators. They include air pads, which work by continuously introducing compressed air into the dry powder, and the Evasser, a unique bin aerator that, unlike other types, does not use cotton or canvas to diffuse the air. As a result of this innovation, the Evasser is less likely to become clogged due to moisture.

Solids Flow Monitor/Meter

Monitor's line of solids flow monitors employs microwave Doppler effect technology to provide signals indicating and measuring the flow/no-flow condition of solids and powders in gravity chutes, feeders, and pneumatic pipelines. Sturdy, high-quality, non-intrusive instruments, they feature industrial-grade materials and construction.

Continuous Level Sensors

Monitor Technologies is a leading provider for a wide range of solutions in continuous level measurement and remote inventory management systems for the storage of powders and bulk solids in bins, silos, vessels, etc. Models featuring non-contact radar can be used to monitor the height of material on open area conveyor belt systems. Sensors can interface with Web-based inventory management software to view data anytime.

Mass Flow Meter

Mass flow meters measure the flow of quantities in pneumatic conveying and free-falling processes for powders, dust, bulk solids, pellets, and granular up to 0.75 inch (2cm). They are based on the latest microwave technology and provide fast, continuous in-line (online) measurements of the powder or bulk solid material. The sturdy, non-intrusive design of the sensors minimizes maintenance while their compact size makes for easy installation into existing processes.  

Moisture Measurement

The HumiCore in-line moisture measurement sensors from Monitor ensure product quality by measuring the moisture inside the material core, not just on the surface. They also allow for automation of drying or moisturizing at different points in processes to minimize energy costs and maximize profits. Well-designed and compact, the sensors are easy to install and calibrate and work with a large variety of powders and bulk solid materials.

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