LINCOLN, Neb. - LI-COR backed by global investment firm Battery Ventures, announces the launch of the LI-300 and LI-350 Soil Moisture Sensors: two new additions to the company's longstanding and comprehensive portfolio of environmental research instrumentation. Designed for every user, these easy-to-deploy sensors provide clear and consistent insights into a variety of research and commercial applications.
The LI-300 and LI-350 provide dependable soil moisture and temperature data across a wide range of soil and substrate types and environmental conditions. The LI-350 adds electrical conductivity (EC) for users whose work requires a deeper understanding of soil conditions—such as greenhouse growers, irrigation managers, and researchers. It also delivers direct volumetric soil moisture values via digital output. This simplifies data analysis, reduces the need for conversions, and minimizes user error.
“If you manage fields, greenhouses, or research sites, soil moisture is the clearest window into how water moves through your soil and what your plants are actually experiencing,” said Tom Reslewic, CEO of LI-COR. “It tells us when to water, how much to water, where it's needed, and where it isn't. With the LI-300 and LI-350, we can make smarter decisions every single day.”
Both sensors are carefully engineered for long-term deployment in both indoor and outdoor environments—from the pots and trays in humid greenhouses and to multi-season eddy covariance stations. Their circular probe design supports more uniform soil contact than traditional rod-style sensors, giving them a unique advantage for greenhouse containers, research plots, and field stations where measurement consistency matters in day-to-day decision-making. Sealed electronics also protect against moisture and humidity, while robust UV-resistant cabling supports extended outdoor exposure.
“For environmental work, repeatability matters just as much as accuracy,” said Mamadou Ba, Senior Director of Product Management. “We designed the LI-300 and LI-350 to deliver consistent measurements across seasons and sites since many operations switch between containers and fields throughout the year. With these sensors, they can focus on the outcomes rather than the tools and make informed decisions faster and with confidence.”
In addition to being used as standalone tools, the LI-300 and LI-350 are compatible with common monitoring platforms—including existing LI-COR and HOBO® systems—which makes them an ideal addition and easy integration for many. Their practical design supports rapid setup, quick repositioning for taking survey measurements, and consistent results across sites. These features make the LI-300 and LI-350 well-suited for research and scientific work along with large-scale projects in production agriculture, controlled environment agriculture (CEA), and OEM system integrations.
Both soil moisture sensors expand LI-COR's long history of delivering trusted measurement solutions for plant, soil, and atmospheric research. With these latest additions, LI-COR aims to make high-quality soil moisture monitoring more accessible, repeatable, and clear for commercial users, researchers, and other environmental professionals alike.
The LI-300 and LI-350 Soil Moisture Sensors are available now. More information, specifications, and purchasing options are also available.
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About LI-COR
LI-COR® and HOBO® Data Loggers, a LI-COR Brand, deliver environmental monitoring and measurement solutions worldwide. With 90+ years of combined experience and backed by global investment firm Battery Ventures, both brands support comprehensive research and analysis of parameters critical to food, water, and energy security.
LI-COR instruments, software, and cloud-based systems facilitate the accurate measurement and monitoring of gas, plant physiology, and climate conditions. HOBO data loggers and remote monitoring systems are trusted in agriculture, coastal research, and green building performance. Together, we empower you to address some of the world's most significant human and planetary health challenges.
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