No Cellular Data Fees for 5 Years! Then, Only $2.99/Month, And No App Subscription Fees.
L4 Plus Cellular Soil Moisture Sensor with Irrigation App
$1,820
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Know when, where, and how much to irrigate. EarthScout helps you irrigate with confidence.
- 5-IN-1 CELLULAR DATA LOGGER: Receive real time soil moisture, soil temp, soil EC, air temp & humidity on your phone/laptop with our Irrigation App
- IRRIGATION APP: Includes interactive graphs, compare sensor data, GPS location, set notifications, export data into CSV file, and more (see videos)
- QUICK & EASY INSTALL: Installs in minutes. Includes free phone support
- RESEARCH-GRADE TDR SENSOR: Considered the gold standard for accuracy. Installs in undisturbed soil. No calibration or slurry required
- CUSTOMIZABLE: Use up to 4 TDR soil sensors at once
- FLEXIBLE DATA COLLECTION: Place TDR sensors into a crop root zone at the depths you choose. Cables come in 6’ or 30’ lengths for specialty growing, research, or education
- IDEAL FOR ANY CROP: Including corn, soybeans, potatoes, berries, wheat, fruits & vegetables, citrus & nut trees, vineyards, and flowers
PRICE INCLUDES: Cellular Data Logger with 4 Plug & Play Sensor Ports, Pole Stand, 1 TDR Soil Moisture Sensor, Air Temp & Humidity Sensor, Solar Panel, GPS, Battery & Charger, Irrigation App, Free Phone Support, 3-Year Warranty. To learn more, call us at 1-877-443-7632.
Standard production time could be up to 4-6 weeks and will be shipped via FedEx Ground. For expedited production or shipping options, please contact our sales team at 877-443-7632.
L4 Plus Cellular Field Data Logger with Irrigation App: Place EarthScout in any field and receive real time soil moisture, soil temperature, soil Electroconductivity (EC), air temperature & humidity on your phone or desktop with the EarthScout Irrigation App. EarthScout is also solar powered. There are No Cellular Data Fees for 5 Years! Then, only pay $2.99 a month for data, and no app subscription fees. EarthScout products are preferred by researchers and universities for their ease of use, accuracy, and reliability.
EarthScout L4 Plus Cellular Soil Moisture Sensor installs in minutes and no slurry or calibration is needed. Receive real-time soil data, 24/7. Soil Data is logged and sent to mobile and web app in simple graphs. Research-grade TDR sensor is preferred by researchers, and considered the gold standard for precision and accuracy. EarthScout Irrigation App is loaded with great features: Set Field Capacity (FC) and Maximum Allowable Depletion in the app, and then simply irrigate up to FC and dry down to MAD. Numerous other app features include GPS location, set notifications, download your historic field data in a .CSV file, and more. Customize your L4 Plus with up to 4 TDR Soil Moisture Sensors at a time, and place them at multiple depths to monitor how water is passing through the soil. Sensor cable are available in 6′ or 30′ lengths. Perfect for specialty growing situations, or for research & education. A built in solar panel continuously charges the battery all season long. EarthScout products are rugged & reliable, commercial grade, and farm tough. EarthScout products are proudly built in Minnesota, USA, by growers like you. EarthScout includes a 3-Year Warranty, and we provide our customers free phone support.
Take A Video Tour Of Our
Easy-To-Use EarthScout Irrigation App
Irrigate with confidence with EarthScout. Our Irrigation App provides growers real time soil data in simple, interactive charts on their cell phone and laptop, 24/7.

EARTHSCOUT IRRIGATION APP DASHBOARD TOUR: In this video we have two EarthScout TDR Soil Moisture Sensors installed horizontally in the soil at a 6” and 12” depth (up to 4 TDR sensors can be installed up to 4′ deep). We walk through the Irrigation App dashboard, look at the soil moisture, soil temperature, soil electroconductivity (EC) reading for each EarthScout TDR sensor. We compare the two sensor depths to see the difference in moisture, temperature and EC readings, we look at the air temperature and humidity for the unit, and more.

EASILY MANAGE YOUR PIVOT OR DRIP IRRIGATION: Discover how growers use the EarthScout Irrigation App to set up simple guidelines in the Soil Moisture Chart to ensure their soil moisture remains in the optimal range for plant growth. In the app, growers can set their Field Capacity (FC), Maximum Allowable Depletion (MAD), and Permanent Wilting Point (PWP) in seconds. Then, they can set and receive notifications when their soil moisture levels approach FC or MAD, and adjust their pivot or drip irrigation system accordingly. Need help? We provide free customer service & phone support.

EXPORT YOUR DATA: In this video, learn how to export an Excel .CSV File (week, month, year, etc) for crunching your data, importing in into another application, or sharing it with others.

KNOW THE LOCATION OF YOUR EARTHSCOUT USING GPS: Use our GPS Location feature in the EarthScout Irrigation App to quickly find the location of your L4 Cellular Soil Moisture Sensor on a map.
EarthScout TDR Sensors – The Gold Standard: EarthScout Time Domain Reflectometry (TDR) sensors are considered the gold standard in precision sensors, and used in government & university research due to its accuracy and reliability. Measures soil moisture, soil temperature, and soil electroconductivity. Installs into undisturbed soil and no calibration is needed. Use in natural soil, Rock Wool, Coco Coir, Perlite, Peat, Sand, Clay, and more. Cal also be used in high organic matter, high salt, and soil-less root zone mixes. Easy to install and uninstall.
Plug In Up To 4 TDR Sensors To Monitor Soil At Multiple Depths. Dig a hole using a shovel or our Soil Auger Drill Bit and insert your TDR Sensors into the sidewall of a hole at any depth. Insert a shallow TDR sensor to receive important data on the EarthScout Irrigation App for early season decisions. Deeper sensors provide valuable insights as the roots move deeper in the soil later in the season. EarthScout TDR sensors install in undisturbed soil, and no calibration or slurry is required. Plus, with TDR sensors there is no risk of bad data or reinstallation due to soil dry back. Just insert the TDR sensor into the side of the hole at the depths you choose, fill in the hole with dirt, and leave the sensor in place all season long. Use an EarthScout Burial Tube for making sensor insertion quick and easy.
How To Use L4 Plus Data Readings: EarthScout L-Series Cellular Soil Moisture Sensors take data readings every hour and send the data to the EarthScout Irrigation App on your mobile device or computer. Use EarthScout to monitor conditions above and below ground and always know when, were, and how much to irrigate. Soil Moisture: View trends in your data and see how water is moving through your soil profile, see how much water your plants are taking up, estimate your field capacity, and dial in your irrigation. Soil Temperature: Monitor soil temperature at multiple depths to make the most informed planting and fertilizing decisions. Soil Electroconductivity (EC): See the concentration of salts in the soil and determine if fertilizers are moving through the soil profile. Air Temperature & Humidity: Environmental data collected in field allows for the calculation of hyperlocal growing degree (heat) units specific to that location for crop or pest growth stage monitoring.
Monitor Any Crop Real Time, 24/7: EarthScout L4 Plus Cellular Soil Moisture Sensors are the perfect solution for monitoring your fields. It’s great for use on a farm, vineyard, or orchard, and for research, and education. It can monitor any crop, including corn, soybeans, potatoes, grapes, wheat, fruits, vegetables, citrus, nuts and rice.
L4 Plus Cellular Soil Moisture Sensor is loaded with great benefits:
- 30″ tall installed
- Easy to use and install
- Customize L4 Plus Cellular Soil Moisture Sensor to operate up to 5 different sensors at one time (Example: 1 built-in Air Temperature & Humidity sensor, 1 plug-in Solar Radiation Sensor, and 3 plug-in TDR Soil Moisture Sensors for monitoring the soil at 3 depths)
- Wireless Cellular technology sends real time soil & environment data to the EarthScout app from anywhere, anytime using Verizon 4G LTE CAT M1 network in the US, and 2G/3G service for most countries outside the US
- Wifi version available. Call us for details.
- Research-grade sensors used by scientists at leading universities
- IOT smart farming technology
- Portable & compact
- Power management (solar with battery) allows for flexible placement and redundancy
- Mobile and desktop app is intuitive, easy-to-use, and includes the irrigation module
- GPS – pinpoint the location of EarthScout on the EarthScout mobile app
- Data is stored inside the product as a backup in case of temporary outages
- 1 year limited warranty
The EarthScout TDR (SDI-12) Soil Moisture Sensor is a precision Time Domain Reflectometer (TDR) that provides highly accurate volumetric water content (VWC) measurements in soils and other porous media. Trusted by leading researchers, it offers the same TDR technology found in high-end instruments that cost thousands of dollars more. Compact yet powerful, it integrates precision TDR components and a 15 cm waveguide within a small enclosure.
Key Advantages:
- High-Resolution TDR Technology: Delivers 5ps resolution for precise water content measurements (up to 1.00 m³/m³), using advanced waveform digitizing and analyzing firmware for precise time-domain analysis.
- Improved Sensitivity: Direct coupling of the TDR function to the waveguide eliminates coax cables, enhancing bandwidth, resolution, and measurement sensitivity.
- Fast Performance: Ultra-fast rise time (150ps), rapid response (<0.25 sec), and low power consumption (0.09 J per reading) make it ideal for both field and laboratory use.
- Robust and Reliable: VWC readings are unaffected by bulk electrical conductivity (under 1.8 dS/m) and soil compaction, eliminating the need for soil-specific calibration.
- Durable and Energy-Efficient: Low sleep current (<10 µA) supports long battery life.
Key Features:
- Waveform Digitizing TDR with 5ps Resolution
- Measures Water Content: 0% to 100% VWC
- Reads Bulk EC: 0 to 2000 µS/cm
- Accurate Soil Temperature: ±0.25°C
- Supports Time Domain Waveform Download
- Ultra-Fast Incident Wave Rise Time: 150ps
- Fast Measurement Response: <0.25 sec
- Low Power Usage: 0.09 J per Reading
- SDI-12 Interface
Measurement Functions:
- Volumetric Water Content (VWC): 0% to 100%
- Medium Permittivity: 1 to 80
- Medium Bulk Electrical Conductivity (EC): 0 to 2000 µS/cm
- Medium Temperature: -40°C to +60°C
- Pore Water EC (Hilhorst Model): 0 to 55,000 µS/cm
Applications:
- Agriculture, Turf, Landscaping, Orchards, Greenhouses, Golf Courses, and Nurseries
- In-Situ Soil Water Monitoring for Agriculture
- High Credibility Data for CloudBased Analysis
- Gold Standard VWC Reference
- Replacement for Neutron Probes
- Portable Measurements
- Laboratory and Field Research Instrumentation
The EarthScout TDR Soil Moisture Sensor is the gold standard for reliable, high-accuracy soil moisture measurement, offering fast, energy-efficient readings for a wide range of agricultural and scientific applications.
Weight & Dimensions:
- 8.5 lbs.
- Collapsed: 35”H x 12”W x 6”D.
- Standing: 35”H x 9”W x 9”D.
Electronics Case:
- Type 4X polycarbonate water & corrosion resistant (non-submersible), UV rated case.
- Rechargeable, sealed, lead-acid battery for extended use.
- Stainless steel hardware & brackets.
- All fittings and hardware are water and corrosion resistant.
Solar Panel:
- Solar Panel Dimensions: 5.39″H x 5.39″W
- Lightweight, waterproof, and designed for outdoor, long-term use in any environment.
- UV and scratch resistant coating.
- Panel extends period between battery charges.
Battery:
- Absorbent Glass Mat (AGM) technology for superior performance
- Valve regulated, spill proof construction allows safe operation in any position
- Power/volume ratio yielding unrivaled energy density
- Rugged impact resistant ABS case and cover (UL94-HB)
- Approved for transport by air. D.O.T., I.A.T.A., F.A.A. and C.A.B. certified
- U.L. recognized under file number MH 20845
- Nominal Voltage: 4 volts (2 cells)
- Battery Dimensions: 1.89″L x 2.09″W x 3.70″ H
- Weight: 1.30lbs.
TDR Soil Moisture Sensor:
- Sensor Dimensions: 8″L x 2″W x 0.5″D.
- Monitors soil moisture, soil temperature, and soil electroconductivity (EC)
- Durable, research grade sensors for use in harsh environments
- Cables are waterproof sealed for outdoor use
- Ground level sensors protected with abrasion and rodent resistant braiding
Mounting Post:
- Orange pipe made of high quality, structural grade PVC. 100% solid wall vinyl so color is throughout the pipe.
- Conduit is UV & impact resistant for tough outdoor durability and color retention.
- Metal feet made of steel with black paint.
L-Series Installation Manual:
Learn how to install and uninstall EarthScout in a field: L-Series Installation Manual.PDF
Battery Removal & Charging:
Reference the following PDF for instructions on how to remove and charge your EarthScout battery: Battery Removal & Charging.PDF
More Questions?
Visit earthscout.com/education-center for videos about how to install EarthScout in a field, how to install the EarthScout app, and more! Or, contact us at 1 (877) 443-7632.
What Is Covered By This Warranty?
EarthScout warrants the EarthScout-branded product and the EarthScout-branded accessories contained in the original packaging (“EarthScout Product”) against defects in materials and workmanship when used normally in accordance with EarthScout’s published guidelines, and a period of THREE (3) YEARS from the date of original retail purchase by the end-user purchaser (“Warranty Period”). EarthScout’s published guidelines include but are not limited to information contained in technical specifications, user manuals and service communications.
What Is Not Covered By This Warranty?
This Warranty does not apply to any non-EarthScout branded hardware products or any software, even if packaged or sold with EarthScout hardware. Manufacturers, suppliers, or publishers, other than EarthScout, may provide their own warranties to you – please contact them for further information. Software distributed by EarthScout with or without the EarthScout brand (including, but not limited to system software) is not covered by this Warranty. Please refer to the licensing agreement accompanying the software for details of your rights with respect to its use. EarthScout does not warrant that the operation of the EarthScout Product will be uninterrupted or error-free. EarthScout is not responsible for damage arising from failure to follow instructions relating to the EarthScout Product’s use.
EarthScout Purchase Terms
When you purchase EarthScout there is a 3 year limited warranty.
EarthScout L4 Plus has a 15 day return policy. The return policy is void if the plastic shrink wrap around any of the sensors are torn, removed, or there are signs of product use. The customer will be responsible for return shipping costs.