SKU: 49576467304
neutron probe soil moisture meter

neutron probe soil moisture meter Cosmic Soil Moisture Monitor (Cosmic-SMM)

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Description

neutron probe soil moisture meter Cosmic Soil Moisture Monitor (Cosmic-SMM)An emerging technology is the Cosmic Ray Neutron Sensor (CRNS). These systems measure naturally occurring neutrons from cosmic rays to understand the moisture levels in soil below the surface, which can help to better understand the impact to plant root systems and nutrients. With such information, we can make better irrigation decisions, conserve energy, and provide better predictive ecological models and warnings for events such as drought and flood

An emerging technology is the Cosmic Ray Neutron Sensor (CRNS). These systems measure naturally occurring neutrons from cosmic rays to understand the moisture levels in soil below the surface, which can help to better understand the impact to plant root systems and nutrients. With such information, we can make better irrigation decisions, conserve energy, and provide better predictive ecological models and warnings for events such as drought and flood conditions. The RDT Cosmic Soil Moisture Monitor (Cosmic-SMM), provides accurate measurements of the water content in soil, providing real-time, critical data to decision makers in irrigation, water management, agriculture, and climate monitoring.

 

With a high neutron-sensitivity and large sensing-area, it is possible to measure soil moisture content without an on-board radiation source, and instead measure the natural neutron background. The cosmic-ray background is made up of a spectrum of neutron energies, ranging from thermal (0.025 eV) to fast neutrons (>1 MeV). Epithermal neutrons, in the middle of this range (~0.025eV – 1MeV), make up the majority of the neutrons (once thermalized) measured by the neutron detector. When a neutron interacts in hydrogen (water), it loses energy, sometimes all of its energy, and therefore a correlation can be made between the number of neutrons measured by the Cosmic-SMM and the volume of water within the soil.

 

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).

 

Applications: 

  • Turf Management
  • Farming
  • Federal Lands Monitoring
  • Researchers
  • Geologists

 

Cosmic Rays to Monitor Soil Moisture


 

From Cosmic Rays to Soil Moisture

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SKU: 49576467304

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4.5 ★★★★★
Based on 22 reviews
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Verified Purchase
Chip
Chelsea, US
★★★★★ 1
Would not buy again
My dog loves chew toys and was very excited when I opened the package. She played with it for about 10 minutes and now she wont touch it. It does seem very durable as she chewed on it and there was little damage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2025
M
Maryellen
Massapequa, US
★★★★★ 3
Long lasting, not super appealing to my dogs.
Objective Data: I have two 50 pound dogs; a 10mos goldendoodle and a 7yo viszla. The puppy is a moderate chewer, the senior dog takes chewing in binges. He will occasionally get something and work it over for awhile and then not seek out anything to chew for a couple of days. Initially these went over well, but neither of my dogs pursue these much after a few weeks. The puppy will occasionally bring one over to briefly chew laying at my feet. Even with the initial, enthusiastic chewing of "new" toys these are still very intact!! These are going to last such a long time. **CAUTION** if you have beige carpet I don't recommend these toys for your home. They blend in to the color of our carpet and I cannot tell you how many times I have rolled my ankle or stubbed my toe kicking one across a dim/dark room. I would rather walk barefoot through a minefield of legos.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2025
D
Verified Purchase
Dc
Omaha, US
★★★★★ 5
odd shape but dogs are constantly chewing on it
seems to be an odd shape but my large dogs constantly chew on this. holds up to chewing well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
J
JY
Waukegan, US
★★★★★ 4
Keeps my dog busy
My dog has so much fun getting peanut butter out of this chew! It has small holes so it makes them put a little more effort than a typical chew. I would say it keeps them occupied for at least 15-20 minutes and they get pretty tired after. I think it's a good size for my medium dog. One thing i wish they did was making it with a silicone rather than nylon. It does get chewed off and I don't like the fact that they are ingesting them. All in all it's a great design to keep than busy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2025
M
Michael W.
Chelsea, US
★★★★★ 5
Seriously durable
I have 3 XXL dogs (how convenient this comes in a three pack!). They will destroy many toys marked for aggressive chewers, but not these. Plus, they are good sized, leaving room for me to hold them while they are chewing when I elect to do that. I don't really smell anything in the toy itself. Maybe the dogs do, but not enough to keep their interest more than a few minutes. However, when I smeared it with peanut butter, it was a whole new story. All 3 of them LOVED that and spent some time getting every last morsel of peanut butter out of the toy. In the meantime, because of the honeycomb texture, I feel they were getting a decent dose of tooth cleaning as well. I wish the texture were a little deeper to fit more peanut butter, but I suppose it is probable that would make the surface texture less durable. My dogs like them, so I do too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2025

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