Precision Sensing for Smarter AgTech

An agriculture device that uses a Millar ISFET pH sensor in a wet field.

Elevate Your Equipment with Sentron

Integrate Sentron’s rugged, glass-free sensor technology to bring reliable, high-precision measurements to agriculture equipment.

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Reliable ISFET-Based pH Measurement

Our Ion-Sensitive Field-Effect Transistor (ISFET) pH sensors provide fast, accurate readings without the fragility of glass electrodes even in high-salinity or extreme pH environments, making them ideal for integration in smart agriculture devices.

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Multi-Parameter Sensing Capabilities

Enable your devices to measure pH, electrical conductivity (EC), oxidation-reduction potential (ORP), and temperature with multiparameter sensor integration. This streamlined sensing solution supports more precise nutrient management and environmental monitoring.

Designed for Harsh Environments

From greenhouses to open fields, our glass-free sensors stand up to challenging agricultural conditions, including high salinity, extreme pH and rough handling.

Proven Applications

A lab technician uses Sentron’s MicroFET ISFET Probe.

Oil Monitoring

Tracking the pH of soil in real time supports optimized fertilization, improved nutrient uptake and better crop yields. Our ISFET pH sensors are durable enough for field deployment and sensitive enough for precision ag systems.

A soil monitoring devices using Millar sensing technology in a greenhouse.

Greenhouse and Hydroponic Nutrient Control

Maintaining ideal nutrient solution pH in greenhouse and hydroponic systems is essential to plant health. ISFET pH sensors integrate easily into closed-loop controls, supporting automation and water conservation goals.

A row of agricultural devices that use Millar’s ISFET pH sensors deployed in a field.

Smart Irrigation Systems

Monitoring irrigation water pH helps protect crops from stress, ensures consistency and supports compliance. Our sensors withstand wet and/or dry cycles and field exposure with minimal maintenance.

A farmer monitors livestock.

Livestock Health Monitoring

Implantable sensor platforms leverage our ISFET pH technology to track digestive conditions, identify early signs of illness and support optimized feeding strategies for improved production efficiency.

Sentron Multiparameter Probes

A complete toolkit of durable, high-precision sensors designed to help farmers improve crop health, soil conditions and system performance.

A Sentron ConeFET pH/EC/ORP/T Probe

ConeFET pH/T ISFET Probe

A compact pH and temperature sensor ideal for monitoring soil slurry, nutrient reservoirs and hydroponic systems where accurate, fast-response pH data is vital to crop health.

A Sentron ConeFET pH/T Probe.

ConeFET pH/EC/ORP/T ISFET Probe

A rugged, all-in-one sensor that integrates pH, EC, ORP and temperature measurements, useful for greenhouse nutrient tanks, fertigation systems and irrigation water quality management.

A Sentron ConeFET EC/T Probe.

ConeFET EC/T ISFET Probe

Designed to track electrical conductivity and temperature in irrigation systems and fertilizer solutions, this durable probe helps optimize nutrient dosing and root zone conditions.

A Sentron LanceFET pH/EC/ORP/T Probe.

LanceFET pH/T ISFET Probe

Built for dense or semi-solid samples, this steel-tipped probe delivers accurate pH and temperature readings in compost, wet soil, silage or organic growing mediums.

A Sentron LanceFET pH/EC/ORP/T ISFET Probe

LanceFET pH/EC/ORP/T ISFET Probe

Ideal for precision analysis in soil beds, plant substrates and organic fertilizers, this steel-tipped probe penetrates semi-solids with ease while capturing complete water quality parameters.

A Sentron LanceFET pH/EC/ORP/T ISFET Probe

LanceFET EC/T Probe

Engineered for direct EC and temperature readings in packed soil, compost or crop substrates, this probe’s steel tip enables stable contact and high-quality measurements in non-liquid environments.

Connect with Our Industrial Sales Team

Our team specializes in precision sensor solutions for industrial environments — from food and beverage production to agriculture, water treatment and beyond. Reach out to explore how Millar’s technology can support your next breakthrough.

A pH sensor on a microchip wafer.
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Request an R&D Kit

Start developing with our comprehensive R&D Kits, packed with the technology and sensors to help you push the boundaries of innovation.

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Download Our Sensor Portfolio

Want to see more of our sensor technology? Download our portfolio of sensor solutions designed for integration in agriculture and across industries.