Soil Moisture Monitoring

Radiation Detection Technologies, Inc. (RDT) is actively expanding into the soil moisture agriculture market through the development and deployment of our Cosmic Soil Moisture Monitor (Cosmic SMM), a next-generation, non-invasive sensor designed for precision agriculture. Leveraging our expertise in neutron detection technologies—originally developed for defense and nuclear applications—we have adapted our solid-state neutron detectors to provide reliable, field-scale soil moisture measurements without the need for buried probes or extensive calibration. The Cosmic SMM uses passive cosmic ray neutron sensing to monitor soil moisture over large areas, making it ideal for broad-acre farming, irrigation management, and drought resilience strategies.

Our company’s vertically integrated operations—from sensor design to in-house manufacturing—enable scalable and cost-effective production of advanced detection systems tailored to agricultural needs. Cosmic SMM is optimized for off-grid, low-maintenance operation and is fully compatible with IoT infrastructure, making it easy to integrate into farm management software and real-time decision-making systems. RDT is particularly interested in forming partnerships with agricultural technology companies, irrigation solution providers, research institutions, and government agencies to support widespread deployment and adoption. By combining cutting-edge physics with practical agricultural applications, we aim to transform how growers manage water resources and increase sustainability in farming operations worldwide.

COSMIC-SMM Performance Information

• Standard Device Dimensions 24″ x 9.5″ x 5.4″ for a 2-device Li-Foil MWPC configuration (1″ thick HDPe weather tight enclosure).
• 700 – 800 neutron counts per hour (cph) per Li-Foil MWPC device (2-device configuration: 1400 – 1600 cph; 3-device configuration: 2100 – 2400 cph).
  • Altitude: 350 m a.s.l.
  • Mean air relative humidity: 70%
  • Mean atmospheric pressure: 977 kPa
• Solar Powered
• Can include common weather station sensors: temp, pressure, rain gauge.
• Cellular reach back. Compatible with common data loggers.
• Remote download options (coming soon).