The only all-electric automatic soil sampler on the market

The SMO Autoprobe is an automatic soil sampler used to quickly and accurately collect soil samples/cores for nutrient analysis, and agronomic decision-making.

Quieter, Easier, More Dependable

Unlike traditional hand sampling or relying on loud gas engines or complex hydraulic systems, the SMO Autoprobe is powered by a simple 12-volt electrical connection. This makes it quieter, easier to maintain, and more dependable in the field.

Built for real-world use, the SMO Autoprobe allows operators to collect hundreds of consistent soil cores per hour while staying focused on accuracy and efficiency.

Buy An SMO Autoprobe

How it works

The SMO Autoprobe mounts easily to a vehicle using a standard 2” receiver hitch and connects directly to a 12-volt power source.

With the push of a button, the system automatically drives the probe into the soil, collecting an adjustable soil core from 2” to 12” in depth. During the up cycle, the probe retracts while the core extractor scrapes the soil from the probe and deposits it into the soil tray—ready for the next sample.

SMO Autoprobe Features

SMO Autoprobe
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Key Benefits

Speed

At a mounted height of one foot, the probe will collect a 7” inch soil core in 6 seconds.

Precision

Consistent sampling depth adjustment and repeatable operation help ensure reliable, accurate soil data.

Quiet

All-electric operation means no loud gas engines or hydraulic pumps—making long days in the field more comfortable and less fatiguing.

Easy Mounting

The 2” receiver hitch and 12 volt disconnect design allows quick mounting to a wide range of vehicles and easy transfer between units.

Efficiency

Simple operation and quick cycle times allow more acres to be sampled in less time. Eliminating sore backs, feet, and shoulders from hand sampling, and relying on consistent performance—because the SMO Autoprobe samples at the same speed on Monday as it does on Friday.

Simple

No gas engines. No hydraulics. No complicated controls. The all-electric SMO Autoprobe connects to a 12-volt power source and is designed with fewer parts, low maintenance requirements, and straightforward operation—so you spend less time troubleshooting and more time sampling.

Ready to simplify your soil sampling process?
  • The SMO Autoprobe is an awesome tool! It is very easy to take on and off my Polaris Ranger 1000 that I use for sampling.  I have an enclosed trailer that I use to transport my Ranger.  Ease of attachment was a big part of my purchasing decision.  Also it is 100 percent silent no gasoline motors to have running or hydraulic pumps or hoses to deal with just a simple 12 volt power cable with a quick connect.  When in use it is still VERY quiet and has plenty of power.  For example if one hits a rock it will lift the Ranger up if the operator does not let off the actuator button.  

    I have only used mine for the fall of 2025 and am very happy with the purchase.  Previously I sampled with a hand probe and had difficulty maintaining a 6 inch core when the soil conditions were on the dryer side.  Not a problem now, 6 inch cores every time!   I only wish I would have bought it years earlier!
    Jerry Kovach
    (Independent Sampler) Michigan
  • We are about to start our 10th season with the autoprobe. While from the outside it looks the same, we have changed out every component on the inside for a quest for more power, speed and reliability.  The last upgrade was the 3rd generation of the power supply for it.  This upgrade didn’t make the machine run faster, but it made it reliable in hot dry conditions where we were not able to run it before.  My 2nd probe is a 2020 model and is also updated to the current power supply.  

    As our business continues to grow and it seems like the window to be in the field sampling at the correct time is getting smaller. For 2026 we are going to add a new 3rd machine to the operation.
    David Reeves
    (Reeves Agronomics) Indiana
  • So far so good with the autoprobe! Wesley has been immediately responsive anytime we have problems. I like the online store and how easy it is to get parts. I like that you worked shipping into the cost as well. We have two units. One Magitech and one SMO. They are good units for us.
    Daniel Rege
    (WNY Crop Management Association) New York
  • I don’t ever want to pull dirt by hand again. Very grateful that you thought of the wiring being too low of gage on mine. Worked great after that. I wish I would have had one years ago! 
    Cade Sloan
    (Independent Sampler) Iowa, Illinois
  • I run a crop scouting & soil sampling service by myself and was looking at an automated sampler to increase my soil sampling efficiency and cut down on fatigue from hand sampling.  I liked the Magictec sampler compared to others due to it having less moving parts and that it could run right off the ATV battery with no extra engine or hydraulics to deal with.  I bought my sampler in 2015 and have an estimated 160,000 cores through the machine.  Nothing major has gone wrong with it in that time besides the occasional switch, relay or sensor that needs replacing and Ron or Wes have both been great and responsive helping me trouble shoot when those issues did arise.  I’ll definitely be buying a new SMO Autoprobe or having Wes rebuild my old Magictec probe if my old one ever fails.
    Todd Orlowski
    (Orlow’s Agronomy LLC) Wisconsin