A4

A4 Wifi Soil Moisture Sensor is loaded with great benefits:

• 5 Years of free data then $2.99/month

• 10″ tall installed

• Easy to use and install

• Customize A4 Wifi Soil Moisture Sensor to operate up to 3 different sensors at one time (Example: 1 plug-in Air Temperature & Humidity Sensor, and 2 plug-in TDR Soil Moisture Sensors for monitoring the soil at 2 depths)

• Connects with your Wifi to send real time soil & environment data to the EarthScout app

• Cellular version available. Call us for details.

• Research-grade sensors used by scientists at leading universities

• Portable & compact

• Power management (battery, 120V AC adapter) allows for flexible placement and redundancy

• Mobile and desktop app is intuitive, easy-to-use, and includes the irrigation module

• 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:

• Weight: 4 lbs.

• Dimensions: 5.625”H x 5.625”W x 3.625”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

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 Stake:

• Plastic mount with steel rod

A-Series Installation Manual:Learn how to install and uninstall EarthScout in a greenhouse: A-Series Instruction Manual

Battery Removal & Charging:
Reference the following PDF for instructions on how to remove and charge your EarthScout battery: How To Charge Battery

More Questions?
Visit earthscout.com/education-center for videos about how to install the EarthScout app, and more! Or, contact us at 1 (877) 443-7632.

Register Your A Series Product and Activate Your Warranty HERE

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 ONE (1) YEAR 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 1 year warranty.

Return Policy

EarthScout A4 has a 30 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.