Sensor Products
Purpose-Built Hardware for Real Farms
Every sensor is maintenance-free, weather-proof, and designed to deliver years of reliable data without a single battery change.
No Batteries
Energy-harvesting technology
Weather-Proof
IP67/IP68 rated
6-Mile Range
LoRa radio connectivity
Install & Forget
Zero maintenance
sm-100
SoilPulse SM-100
Multi-Depth Soil Moisture Sensor
What It Does
Measures volumetric water content at three depths simultaneously, giving you a complete moisture profile from topsoil to root zone. Ships with a generic calibration suitable for most mineral soils; site-specific calibration available for higher accuracy.
The Problem It Solves
On Iowa's poorly drained soils, spring saturation events destroy nitrogen through denitrification — 2-5 lbs N/acre/day lost while you wait for fields to dry. Without continuous moisture data at multiple depths, you have no way to know which zones are losing nitrogen, which fields are trafficable, or when saturation has persisted long enough to justify a rescue sidedress application.
In the Field
A slim stainless-steel probe installed vertically in the soil between crop rows. Only the top cap is visible at ground level — a low-profile, dark green disc about the size of a jar lid. Sensor rings at three depths are etched into the probe body. In the field, it looks like a simple ground-level marker.
Technical Specifications
Real-World Use Case
Iowa Rainfed Corn — Denitrification Loss Detection Based on ISU Research
Iowa State University nitrogen management research (Sawyer, Mallarino) documents that saturated soils lose 2-5 lbs N/acre/day through denitrification. On Iowa's Des Moines Lobe soils (Clarion-Nicollet-Webster association), a single 3-5 day saturation event after spring rain can destroy $15-$50/acre worth of applied nitrogen. Multi-depth soil moisture sensors track exactly which zones are saturated, for how long, and whether conditions have persisted long enough to justify a rescue sidedress application — replacing guesswork with field-level data for each management zone.
What This Means for You
Based on ISU published data, real-time saturation monitoring on a 2,000-acre rainfed corn operation enables targeted rescue sidedress applications only where needed, protecting 10-20 bu/acre in yield ($45-$90/acre) while reducing blanket over-application of insurance nitrogen by 10-25%.
Sources
- ISU Extension PM-1714, "Nitrogen Use in Iowa Corn Production" (Sawyer, Mallarino)
- ISU Extension PM-2015, "Corn Nitrogen Rate Calculator"
- Iowa Nutrient Reduction Strategy Science Assessment — denitrification rates of 2-5 lbs N/acre/day in saturated soils
st-200
SoilPulse ST-200
Precision Soil Temperature Sensor
What It Does
Monitors soil temperature at two depths to help you nail planting timing, track germination conditions, and detect frost penetration before it damages roots. Updates every 15 minutes with research-grade accuracy.
The Problem It Solves
Planting too early or too late costs yield. The ST-200 removes the guesswork by tracking soil temperature trends at seed and root depth, so you plant when conditions are actually ready — not when the calendar says so.
In the Field
A shorter stainless-steel probe installed flush with the soil surface. Two precision thermistor elements are bonded at 4-inch and 12-inch depths. The surface cap matches the SM-100 design — a low-profile dark green disc. Nearly invisible once installed between rows.
Technical Specifications
Real-World Use Case
Midwest Corn Planting Optimization — Based on KSU and ISU Extension Research
Kansas State and Iowa State Extension research documents that corn emergence is optimal when 4-inch soil temperature averages 50°F or above for at least three consecutive days. Field-scale temperature variation of 4-8°F across slopes and soil types is common but invisible from the surface. ISU Extension data shows that planting into sub-optimal soil temperatures reduces emergence uniformity by 10-20%, translating to measurable yield loss. Zone-by-zone planting timing based on actual soil temperature data can improve emergence uniformity and recover 3-7% of yield otherwise lost to poor stand establishment.
What This Means for You
Based on ISU and KSU Extension data, optimizing planting date by 3-7 days based on actual soil temperature can improve emergence uniformity by 10-20%, translating to $15-$40 per acre in additional yield value on corn, depending on conditions.
Sources
- ISU Extension PM-1885, "Corn Planting Guide"
- KSU Extension MF-2386, "Corn Production Handbook" — 50°F soil temperature threshold
- ISU Extension research on emergence uniformity and yield impact from sub-optimal planting temperatures
cs-300
ClimaStation CS-300
Above-Ground Climate Sensor
What It Does
A compact weather station that measures air temperature, relative humidity, barometric pressure, wind speed, and rainfall at field level. Provides hyper-local climate data that regional weather stations miss entirely.
The Problem It Solves
Regional forecasts cover counties, not fields. Microclimates on your farm can differ by 5-10°F from the nearest weather station. The CS-300 gives you field-level data for disease models, spray windows, and harvest timing.
In the Field
A compact white weather station mounted on a 6-foot post at the field edge. The solar panel faces south, the rain gauge sits on top, and a small wind vane extends from the side. The design is clean and agricultural — it looks purposeful, not overly technical. A small LED on the front blinks green every 30 seconds to confirm operation.
Technical Specifications
Real-World Use Case
Iowa Spray Window Decision Support — Based on ISU Extension & Label Requirements
Iowa growers face narrow spray windows where wind speed (must be under 10 mph for most labels), temperature inversions (no spraying), humidity (affects droplet evaporation), and approaching rain (washoff risk) all determine whether an application will be effective or wasted. The nearest NWS station may be 15-30 miles away and miss field-level conditions entirely. On-farm climate stations provide real-time wind, temperature, humidity, and barometric pressure data at the field edge — enabling go/no-go spray decisions based on actual conditions rather than regional forecasts that may not reflect your farm's microclimate.
What This Means for You
A single wasted fungicide application costs $25-$35/acre in product alone — plus the application cost and the yield loss if you miss the real spray window. Field-level climate data eliminates guesswork on spray timing, protecting both your input investment and your yield.
Sources
- ISU Extension PM-589, "Herbicide Application Timing and Conditions"
- Purdue Extension PPP series — spray application requirements for wind, temperature, and humidity
- Fungicide label requirements for application conditions (wind speed <10 mph, no temperature inversions)
lw-400
LeafGuard LW-400
Leaf Wetness & Disease Prediction Sensor
What It Does
Measures leaf surface wetness duration and intensity — the primary driver for fungal disease development. When paired with temperature data, it powers predictive disease models that give you 24-72 hours of advance warning.
The Problem It Solves
Tar spot — Iowa's #1 corn disease threat — requires extended leaf wetness (7+ hours) at cool temperatures (60-70°F) to establish infection. Southern rust, gray leaf spot, and white mold in soybeans all have their own wetness-temperature thresholds. Instead of spraying on a calendar, the LW-400 tells you exactly when conditions favor each disease — so you spray only when it matters and never miss the real infection window.
In the Field
A small, leaf-shaped sensor head made from a gold-colored dielectric material, mounted on a flexible gooseneck arm that clips onto a post or stake at canopy height. The sensor surface mimics the texture of a real leaf to match wetting and drying patterns. In the field, it sits just above the crop canopy and is barely noticeable.
Technical Specifications
Real-World Use Case
Tar Spot & Foliar Disease Timing — Based on ISU Extension & Crop Protection Network Research
ISU Extension tar spot research (Mueller, Robertson) documents that tar spot infection requires extended leaf wetness (7+ hours) at temperatures between 60-70°F. These conditions vary field-by-field based on topography, canopy density, and proximity to waterways. Leaf wetness sensors at canopy height track the exact hours of favorable conditions in each field, powering disease risk alerts that tell you which fields need spraying and which don't. The same approach works for gray leaf spot in continuous corn, southern rust when spores arrive from the south, and white mold risk at R1 in soybeans.
What This Means for You
ISU research documents 20-60 bu/acre yield loss from tar spot in unprotected fields. A correctly timed fungicide application ($25-35/acre) recovers 15-40 bu/acre ($67-180/acre at $4.50 corn). Sensor-based timing also eliminates 1-2 unnecessary applications in low-pressure years, saving $25-$70/acre.
Sources
- ISU Extension ICM News — tar spot research (Mueller, Robertson et al.)
- Crop Protection Network CPN-2012, "Tar Spot of Corn" — 7+ hours leaf wetness at 60-70°F infection threshold
- Cornell NEWA (Network for Environment and Weather Applications) — leaf-wetness-based disease forecasting validation
wf-500
FlowTrack WF-500
Irrigation Flow Monitoring Sensor
What It Does
Clamps onto existing irrigation pipe to measure water flow rate, total volume, and pressure in real time. Detects leaks, pressure drops, and flow irregularities that waste water and reduce coverage uniformity.
The Problem It Solves
A single leaking pivot joint or clogged nozzle can waste thousands of gallons per pass and create yield-reducing dry spots. The WF-500 catches these problems immediately — before they show up as crop damage.
In the Field
A rugged, dark gray clamp-on unit that wraps around the irrigation pipe. Two ultrasonic transducers sit on opposite sides of the pipe, connected by a compact electronics housing. A small solar panel on top powers the unit continuously with supercapacitor storage for overnight and cloudy periods. Red/green status LEDs are visible through a clear window on the front.
Technical Specifications
Real-World Use Case
Irrigation Water Management — Based on USDA-NRCS Practice Standard 449
USDA-NRCS Conservation Practice Standard 449 (Irrigation Water Management) establishes that proper measurement and monitoring of irrigation water delivery is foundational to efficient water use. NRCS data shows that operations implementing comprehensive flow monitoring and scheduling typically improve water use efficiency by 10-25%. Early detection of leaks, pressure losses, and distribution non-uniformity prevents both water waste and the crop damage that results from uneven application — problems that are often invisible until yield maps reveal the damage months later.
What This Means for You
Based on USDA-NRCS published data, implementing irrigation water management practices (including flow monitoring) improves water use efficiency by 10-25% and typically saves $5-$15 per acre per season in water and energy costs on irrigated operations.
Sources
- USDA-NRCS Conservation Practice Standard 449, "Irrigation Water Management"
- NRCS published data on water use efficiency improvements (10-25%) from comprehensive flow monitoring and scheduling
gw-600
TerraLink GW-600
Solar-Powered Communication Gateway
What It Does
The backbone of your sensor network. Each gateway receives data from up to 200 field sensors via LoRa radio and relays it to the cloud over cellular (4G LTE). Solar-powered with enough storage to run 14 days without sun.
The Problem It Solves
Farm fields don't have WiFi or power outlets. The GW-600 solves connectivity — one unit covers up to 2,000-3,000 acres depending on terrain, and handles all communication so your sensors just work, even in remote locations with no cell signal at the sensor level.
In the Field
A powder-coated dark green aluminum box mounted on a 10-foot steel pole, with a solar panel angled on top. A stubby LoRa antenna extends from one side and a cellular antenna from the other. The unit is typically installed at a field edge, fence line, or near a pivot point. It looks like a small, professional utility installation — farmers often compare it to a trail camera setup.
Technical Specifications
Real-World Use Case
Agricultural LoRa Network Deployment — Based on LoRa Alliance / Semtech Data
LoRa Alliance agricultural deployment case studies and Semtech field test data document practical communication ranges of 2-5 km (1.2-3.1 miles) through crop canopy at standard LoRa spreading factors (SF10-SF12). With the gateway antenna elevated to 10 feet, reliable coverage of 2,000-3,000 acres per gateway is achievable in typical Midwest agricultural terrain. Dual-carrier cellular failover ensures data delivery even when one carrier experiences an outage — critical for remote installations where the nearest cell tower may be 5-10 miles away.
What This Means for You
The gateway is the foundation that makes the entire sensor network function. At roughly $1.50-$2.50 per acre per year for communication infrastructure, it is the lowest-cost component with the highest leverage — without reliable data delivery, no sensor investment pays off.
Sources
- Semtech AN1200.22 and AN1200.13, LoRa application notes — range and deployment data
- LoRa Alliance, "LoRaWAN in Agriculture" case study compilation — practical deployment ranges of 2-5 km through crop canopy
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