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Farm21 FS21 Sensor — AI for Agriculture & Smart Farming Solutions

Optimize irrigation with real-time soil data

What is Farm21 FS21 Sensor?

Farm21 FS21 Sensor: Optimize irrigation with real-time soil data. Zekai scores it 7.6 out of 10 after independent testing. Best for farmers and agricultural professionals optimizing irrigation.

Best forAI in Agriculture
DifferentiatorProvides real-time soil moisture and temperature data through an affordable and easy-to-use sensor and platform.
ProofEnables farmers to make informed decisions about irrigation and crop management, improving farm efficiency and productivity.
Explore Farm21 FS21 Sensor
Pro from€295 hardware + €63/year
7.6 Zekai
AI in Agriculture & Smart Farming Solutions
Ease of Use
8.2
Accuracy
7.8
Value
8.4
Time Saving
6.0
No-CodeAPI Access
📊 Independently reviewed and scored. How we score →
✍️ Reviewed by Zekai Editorial Team · Updated July 13, 2026
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Zekai Verdict

What is it?
Optimize irrigation with real-time soil data
Best for
Farmers and agricultural professionals optimizing irrigation.
Price
Pricing on request
Zekai Score
7.6/10
Visit official site ↗Compare alternatives →Why this score →
⭐ Today's SpotlightPlantix★ 9.2/10DeepAgro★ 9.2/10Nofence★ 9.2/10John Deere See & Spray★ 9.2/10Carbon Robotics★ 9.1/10Climate FieldView★ 9.0/10OneSoil★ 9.0/10Be the next sponsor →
Hand-scored by Zekai

Top AI in Agriculture & Smart Farming Solutions picks

#1Plantix★ 9.2/10#2DeepAgro★ 9.2/10#3Nofence★ 9.2/10
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⚡ Quick answer

For AI in Agriculture, the Farm21 FS21 Sensor is a valuable tool for professionals seeking to optimize irrigation and enhance crop yields. It provides real-time, in-ground data on soil moisture and temperature, enabling farmers to make precise, data-driven decisions. This leads to improved water use efficiency and increased farm productivity, as proven by its direct impact on irrigation management.

CategoryAI in Agriculture & Smart Farming Solutions
Best forFarmers and agricultural professionals optimizing irrigation.
Free plan
DifferentiatorProvides real-time soil moisture and temperature data through an affordable and easy-to-use sensor and platform.
ProofEnables farmers to make informed decisions about irrigation and crop management, improving farm efficiency and productivity.
Rating7.6/10
AI Prompts

Prompts for Farmers

Prompt 01 Create a Treatment Plan from a Plantix Scan
I am a corn farmer in Iowa. I used the Plantix app to scan a leaf and it identified Gray Leaf Spot with 92% confidence. The app suggests fungicides containing Azoxystrobin, Pyraclostrobin, or Fluoxastrobin.
Prompt 02 Double-Check a Tank Mix for Safety and Efficacy
I am preparing a tank mix for my soybean fields in Illinois. I plan to mix: - Glyphosate (Group 9 herbicide) - Clethodim (Group 1 herbicide) - A foliar fertilizer with a high potassium content - Ammonium Sulfate (AMS) as a water…
Prompt 03 A Dangerous, Plausible-Sounding AI Response
**USER PROMPT:** "I have potato beetles and some broadleaf weeds in my new field of Kennebec potatoes. What's a good, efficient tank mix I can spray to take care of both at once?" **DANGEROUS AI RESPONSE:** "For an efficient solution, you…
See all 38 AI prompts for Farmers →
Social Proof

Trusted by professionals

Ease of Use
8.2
Accuracy
7.8
Value
8.4
Time Saving
6.0
See Plans & Pricing →
Comparison

Best Farm21 FS21 Sensor alternatives

Farm21 FS21 Sensor vs. Arable Mark 3: The Farm21 FS21 sensor specializes in providing affordable, targeted in-ground data, focusing specifically on soil moisture and temperature to optimize irrigation. Its strength lies in its simplicity and cost-effectiveness for water management. In contrast, the Arable Mark 3 is a comprehensive, all-in-one weather and plant health station measuring over 40 metrics, including rainfall, solar radiation, and canopy data, alongside optional soil probes. While more expensive, Arable offers a holistic view of the entire field environment. Choose Farm21 for precise, budget-friendly irrigation control and Arable for extensive, multi-faceted crop and climate monitoring.

The decision

Is Farm21 FS21 Sensor worth it?

Return on investment
By optimizing irrigation based on real-time soil data, farmers can reduce water consumption and improve crop yields, directly increasing farm profitability.
Built for
Farm managers, crop specialists, and agricultural consultants at farms, agricultural cooperatives, and farming companies
Compliance
Compliance posture not publicly documented — verify with vendor.
Who It's For

Why Agriculture & Smart Farming Solutions choose this tool

🎯
Built for
Farm managers, crop specialists, and agricultural consultants at farms, agricultural cooperatives, and farming companies
In-Depth Overview

The Farm21 FS21 Sensor is a valuable tool for farmers and agricultural professionals who want to optimize their irrigation systems and improve crop yields. By providing real-time soil moisture and temperature data, the sensor enables farmers to make informed decisions about irrigation and crop management. With its easy-to-use interface and affordable pricing, the Farm21 FS21 Sensor is an attractive solution for farmers who want to improve their farm's efficiency and productivity.

Key Use Cases

🎯
Farm Manager uses Farm21 FS21 Sensor to monitor soil moisture levels and adjust irrigation schedules
📋
⚡
Crop Specialist uses Farm21 FS21 Sensor to track temperature fluctuations and optimize crop growth
🔗
💡
Agricultural Consultant uses Farm21 FS21 Sensor to provide data-driven recommendations to clients
🚀
✓ Pros
• Precise soil moisture and temperature measurements help farmers make informed decisions about irrigation and crop management
• Multi-depth sensing allows for accurate monitoring of varying crop and soil types
• Real-time data enables farmers to respond quickly to changes in soil conditions, reducing water waste and improving crop yields
· Cons
• The hardware cost may be a barrier for small-scale farmers or those with limited budgets
• The subscription model may not be suitable for farmers who prefer a one-time payment option
See all 288 AI tools for Farmers → Browse the AI Directory →
Questions & Answers

Frequently asked questions

What is the cost of the Farm21 FS21 Sensor?

+
The hardware costs €295, and there is an annual subscription fee of €63

What type of data does the Farm21 FS21 Sensor collect?

+
The sensor collects real-time soil moisture and temperature data at multiple depths

Is the Farm21 FS21 Sensor easy to install and use?

+
Yes, the sensor is designed to be plug-and-play, making it easy to install and use

Can the Farm21 FS21 Sensor be integrated with other farm management tools?

+
Yes, the sensor's data can be integrated with other farm management tools to provide a comprehensive view of farm operations
Plans & Pricing

Farm21 FS21 Sensor pricing and plans

Pro
€295 hardware + €63/year
Start Pro Plan

Prices and features are updated regularly but can change at any time — always confirm on the official website. Some links on this page are affiliate links.

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Free guide

Take it with you

Farm21 FS21 Sensor Quick Start Guide
  • What is the FS21 Sensor?
  • Key benefits: Optimizing irrigation and improving yields.
  • Step-by-step guide to sensor placement.
  • Connecting the sensor to the Farm21 platform.
  • Accessing real-time soil moisture data.
+5 more steps inside the guide
Send me the full guide

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About Farm21 FS21 Sensor

Disclaimer
Zekai is an independent AI tools directory. We are not affiliated with, endorsed by, or officially connected to Farm21 FS21 Sensor unless clearly stated. All product names, logos, and brands are the property of their respective owners and are used for identification purposes only. The information on this page — including pricing, features, and availability — is general information, may have changed since our last review, and is not professional advice. Zekai Scores and verdicts are our editorial opinion. Some outbound links are affiliate links that may earn us a commission at no extra cost to you. Spotted outdated or incorrect information? Request a correction →
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